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The Promise of the Soul

靈魂約定 ‧ Drama ‧ 2025
Completed
Falhon Cyril
0 people found this review helpful
Jun 27, 2026
12 of 12 episodes seen
Completed 0
Overall 8.0
Story 8.0
Acting/Cast 9.0
Music 6.0
Rewatch Value 8.0

The Promise of the Soul — Another Proof That Taiwan Knows How to Reinvent BL

Taiwan never seems afraid to try something different, and The Promise of the Soul is another perfect example. On paper, the story sounds almost impossible to make believable: a man is reunited with his soulmate after being reincarnated through his own grandson's body. Yet somehow, the drama makes this extraordinary premise feel deeply human. By the end, I wasn't thinking about fantasy anymore. I was simply watching two souls who had finally found each other again.

The story constantly surprised me. Rather than treating reincarnation as a gimmick, it asks difficult questions about love, identity, destiny, and sacrifice. The fact that Ye Hai Yuan is the reincarnation of the wife Xia Cha lost decades earlier gives the romance an emotional depth that few BLs attempt. It's also heartbreaking to realise that this second chance only exists because his grandson lost his life. That tragedy remains part of the story from beginning to end, making the happiness bittersweet rather than perfect.

Martin Wong completely surprised me.

I remembered him as being very slim in his previous projects, but here he looks completely different. His physical transformation immediately gives the character a stronger presence, and he convincingly portrays someone carrying decades of life experience inside a young body. It's not just about looking more muscular. It's about making you believe this young man thinks, speaks, and reacts like someone who has already lived an entire lifetime. That balance is incredibly difficult to achieve, and Martin succeeds brilliantly.

Kenji Fan is equally convincing. He's naturally handsome, charming, and easy to like, but what impressed me most is how sincere his emotional journey feels. As Hai Yuan slowly accepts feelings he never expected to have, every step of that evolution feels believable. Because Martin and Kenji already knew each other before filming, their relationship never feels forced. Their chemistry develops effortlessly, making the romance feel genuine from beginning to end.

I also appreciated that the series never loses sight of its emotional core. Beneath the fantasy lies a simple story about two people who complement each other perfectly. They're complete opposites in personality, yet that's precisely why they fit together so naturally. Watching those differences slowly disappear as they realise they're soulmates is what makes the romance so touching.

The production deserves praise as well. Like many Taiwanese BLs, it doesn't rely on spectacular visual effects or extravagant locations. Instead, it focuses on intimate cinematography, expressive performances, and quiet emotional moments. Those choices allow the story to breathe and make even the supernatural elements feel believable.

Final Thought

The Promise of the Soul is another reminder of why Taiwanese BL continues to impress me. It's creative without becoming confusing, emotional without becoming melodramatic, and original without forgetting that the romance should always remain at the centre of the story. Martin Wong and Kenji Fan make an exceptional pairing, and together they bring a beautiful, bittersweet love story to life. It's a drama that made me believe soulmates might really exist.

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Completed
MidnightReader
0 people found this review helpful
Jun 7, 2026
12 of 12 episodes seen
Completed 0
Overall 8.0
Story 7.5
Acting/Cast 8.0
Music 6.5
Rewatch Value 7.0
This review may contain spoilers

Silent tears are the most emotional kind.

I cried a LOT, but I'll get to that later.

I'm going to start with the negatives! Which there are not a lot of. Pretty much the only thing that annoyed me was Cha wanting to give his grandson Zefang his body back, but puts zero effort into figuring out how. How did Cha know that drowning himself would even work? That is a big risk to take on the fly since it could have just killed them both. No one was there to help when he did it! I also would have liked to see Cha have to come to terms with the fact that the grandson he raised, the last member of his family, was truly gone. It didn't have to be long, just something.

Other than that, I wanted to know how Zefang lived at college up to the accident. No one liked him but Guan Ri Qing. Why? What did he do to everyone? What was his and Guan Ri Qing's relationship really like? Why did Guan Ri Qing know that no matter how loud he yelled, no one would come help? Was it because of Zefang? Guan Ri Qing? Or something else? Why did he like Hai Yuan so much? Everything must have been pretty shit for him to let Cha live in his body and move on. There is so much about Zefang's character that we don't know, and if anyone knows if it's covered in the novel, let me know.

I really enjoyed everything else. The acting was really good, especially Martin (Cha/Zefang) and Yaron (Guan Ri Qing), who really impressed me with his crying. Li Ting (Qian Sui) is also adorable. The cuddles are so good, and the nose rubbing in episode 8 was so cute!

I know a lot of people won't like someone like Guan Ri Qing just based on the first interaction, but I couldn't help but feel sorry for him even after he locked Cha in the locker. (He was truly sorry about that as well.) But I like to put myself in the character's shoes, so even though I wouldn't act this way, I know that if my boyfriend came back from visiting family a whole different person, wanted nothing to do with me, and was clingy to someone who hates me, I would feel so incredibly hurt. He only wanted someone to love him, and for all we know, Zefang may have been the one person who gave him any real love at all. I cried when Zefang said goodbye to him, and when he realized he still hadn't told Zefang that he really liked him, and now it was too late. I'm tearing up just thinking about it.

I also cried during Cha and Zefang's heart-to-heart, like during the whole thing. I had to pause multiple times to wipe my eyes and clean my glasses. I'm a very empathic person, so I cry easily, but I haven't cried this much to a show in a few months.

Was the story lacking in giving us past context and the character building of Zefang? Yes. Did it hinder my enjoyment? Very little, I was mostly just left wanting more so I could fully understand Zefang's actions. Would I rewatch this series or a sequel? Yes and Yes. I was very reluctant to watch this series at first because I didn't think they could make the relationship work out given the age gap, or make me believe that the grandson would really just decide to move on when he has his whole life ahead of him. Somehow, they made it work.

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Completed
weepinleaf
0 people found this review helpful
Oct 1, 2025
12 of 12 episodes seen
Completed 0
Overall 9.0
Story 6.0
Acting/Cast 6.0
Music 6.0
Rewatch Value 4.0

I had fun.

You can't just put him in a sweater and call him a twink. I remember what he looks like shirtless. I remember the baps.

This show has a very intense plot subject that got maybe 20% of its work done. There already wasn't enough run-time for them to really flesh out this plot, and on top of that, they are constantly planting little seeds of plots that don't go anywhere (unless these are references of some sort I'm not getting), like one scene near the end with the RA guy. I thought I was going to get more information. Or I expected more "signs" and whatnot related to their destinies or about the past. That said. I knew what to expect from this type of show out of Taiwan, very dramatic for no reason, and I eat it up.

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Ongoing 5/12
StickyJam
2 people found this review helpful
Jul 24, 2025
5 of 12 episodes seen
Ongoing 0
Overall 9.5
Story 9.0
Acting/Cast 10
Music 9.5
Rewatch Value 8.0
This review may contain spoilers

Soul and Body Mix-Up, or is it Fate?

New 2025 - 6/12 Episodes released so far. Airing on both iQIYI and GagaOolala.

Currently watching this series and I am really enjoying the story so far. I love the push and pull of the growing relationship between Hsia Zefang and Ye Haiyuan.

Hsia Zefang is a male who wants to become female in the hope that his crush Ye Haiyuan will fall in love with him.

Both Grandpa Hsia Chia and grandson Hsia Zefang fall down the stairs and this is where the story gets interesting.
A Soul swap and a body that comes back to life, changes the whole relationship dynamic between Hsia Zefang and Ye Haiyuan.

As the story unfolds, there is a hint toward a Soul Mate bond between the two. Will they end up in love, or will their be heartache?

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Dropped 5/12
rih
1 people found this review helpful
Aug 17, 2025
5 of 12 episodes seen
Dropped 0
Overall 3.5
Story 3.5
Acting/Cast 5.5
Music 3.5
Rewatch Value 1.0
It's kinda disturbing and young boy with old soul is kind of disturbing for me,I couldn't watch it, if grandpa's soul is going to live in 2nd lead body then what will happen to 2nd lead soul??I would have watch if 2nd lead was death and his body has grandpa soul, but 2nd lead isn't death,, for good ending, grandpa and main lead both should die and reborn again, if that is possible 😁😁 .2nd lead love is obsessive love ,I hope he wouldn't despair just for main lead and grandpa's love
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Completed
Ggrosz
0 people found this review helpful
Jan 4, 2026
12 of 12 episodes seen
Completed 0
Overall 5.5
Story 5.0
Acting/Cast 6.0
Music 6.5
Rewatch Value 5.0

The Taboo of the Age Gap

This is a fantasy BL series that attempts to navigate the complex waters of soul-swapping, grief, and unconventional romance. While it offers an intriguing premise, the execution leaves much to be desired, particularly regarding its central relationship and narrative logic.

The series hinges on a wide age-gap romance between its male leads, a choice that serves as the story’s most challenging hurdle. While the fantasy element of soul-swapping is meant to bridge this gap, it often has the opposite effect. Watching an elderly man—who is simultaneously grieving his grandson and adjusting to a stolen life—pivot almost instantly into a romantic obsession feels jarring. The "taboo" nature of the relationship isn't just a social hurdle within the show; it’s a psychological hurdle for the audience that the script fails to clear.

The acting across the series is mediocre, though this is somewhat expected given the cast consists largely of new artists still finding their footing. However, the bigger issue lies in the writing. Despite being a fantasy, the plot lacks a necessary tether to reality. The emotional stakes are undermined by a lack of sensibility; the protagonist loses his sense of self and logic far too quickly for his transition to be believable.

The series is plagued by significant plot holes that disrupt the immersion:
Sudden Obsession: The character Zefang’s shift toward Huayian is baffling. He appears to be in an established relationship with another man, yet he becomes inexplicably obsessed with the lead with little to no meaningful transition.
Emotional Incoherence: The grief of losing a grandson is treated as a secondary plot point rather than a life-altering trauma, allowing the "old man" character to fall in love at a pace that defies human emotion.

Despite the messy plotting and inconsistent character motivations, The Promise of the Soul manages to remain just intriguing enough to hold a viewer's attention until the finale. There is a "train wreck" quality to the drama—you want to see how these disparate, often uncomfortable elements eventually resolve.

Recommendation: I am firmly on the fence. If you enjoy experimental fantasy BL and can overlook major logical leaps and uncomfortable age dynamics, it may be worth a watch. However, for those looking for a grounded or emotionally resonant romance, this series may be one to skip.

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Completed
AeonFlux71
0 people found this review helpful
Sep 5, 2025
12 of 12 episodes seen
Completed 0
Overall 8.0
Story 8.0
Acting/Cast 9.0
Music 9.0
Rewatch Value 8.0

Strange but good

Though in the beginning the relationship between a very old and a young man creeped me out, i really liked this drama, it was beautiful. I think i got used to it because it was an old soul in a young body. It is a good story, it had funny, exiting and sad moments.

The visuals and music are beautifull.
I liked both couples, the chemistry and kisses were good.

The only thing that was really bad was the fake grey hair of the grandpa, was it too hard to find a good older looking actor?


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Completed
Tunaland
0 people found this review helpful
Sep 5, 2025
12 of 12 episodes seen
Completed 0
Overall 9.0
Story 9.0
Acting/Cast 8.5
Music 8.5
Rewatch Value 9.0

I was wondering why yall cried but i can see why now

Literally was like "this isnt even that sad why did they they cry?" but i ended up feeling tears on my face lol

i thought that the grandpa focus was a bit too much(?) i can see they aimed for a different storyline but i find it weird watching large age differences... especially knowing that grandpa was straight and suddenly changed to gay, completely forgetting he is still married to his dead wife
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Dropped 2/12
Ttimi
1 people found this review helpful
Sep 19, 2025
2 of 12 episodes seen
Dropped 0
Overall 1.0
Story 1.0
Acting/Cast 4.0
Music 1.0
Rewatch Value 1.0

Hate it

Unfair
Grandpa should stay dead
Zefang deserve his body back

I'm sorry
I never hate bl ending before but this one is disturbing
I drop this story when I know about the ending

HOW CAN GRANDPA FUCK WITH HIS GRANDSON BODY
DISGUSTING

Someone can write a new ending in Wattpad
I need it to clear my mind it's very disturbing
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Completed
DAYNIGHT
4 people found this review helpful
Aug 22, 2025
12 of 12 episodes seen
Completed 0
Overall 10
Story 10
Acting/Cast 10
Music 10
Rewatch Value 10

Xiacha is absolutely adorable!

It's seriously so good, like, amazing! Xiacha is absolutely adorable! Is anyone else obsessed? Oh my god! And every single song is a total banger!
Just two episodes left, and then it's over—nooo, I don't want it to end! I’m gonna miss it so much 😫
These two are just too adorable! Their chemistry is off the charts and they're so good-looking—I literally can't look away! The plot is sweet, lighthearted, hilarious, and totally heartwarming. Can we get like ten seasons of this? I would watch every single frame!

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Completed
AlexCruzDeMalta
1 people found this review helpful
Jun 10, 2026
12 of 12 episodes seen
Completed 0
Overall 9.0
Story 9.0
Acting/Cast 9.0
Music 9.0
Rewatch Value 9.0

10/10 Wholesome, touching in this daring topic!

The Promise of the Soul - Ep.12 Final REVIEW
Now with Episode 12 this very challanging topic was resolved. I know some disliked the premise, but as some who enjoys... how can I say - broad perspectives on life, ! really enjoyed this series a lot.
For all those who followed it to the end and liked it like me, l wonder if you found the ending a Happy one? For I surely did. I was really afraid at Ep. 11, the famous drama apex. ! feared, shall we say morality would hold them back. First, it was well acted, beautiful set in scene and the difficult part of the one MC was well played by the actor. It does have a sad element, and I am usually one to quickly find such... dilemmas bad. But I felt it was finished wholesome and meaningful and I for one shall keep this in fond memory for a long time, as wholesome hope giving story. For in the end, as it was wrapped up, I feel it was a good ending for everyone.
For the courage to seek out different perspectives, without regret I give 10/10
Life is large.

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Completed
CosasQueNadieVe
0 people found this review helpful
May 24, 2026
12 of 12 episodes seen
Completed 0
Overall 5.0
Story 5.5
Acting/Cast 6.5
Music 4.0
Rewatch Value 1.0

¿Romance o Paternalismo? Un erotismo castrado

La serie intenta abordar de manera lúdica y romántica la filosofía de la reencarnación. La trama se centra en un triste y desgraciado “anciano” —Xia Cha (Huang Hao Yung)— que vive junto a su nieto Xia Ze Fang (Martin Wong) y su joven vecino Ye Hai Yuan (Kenji Fan), frío e indiferente, quien cuida de su madre soltera que se encuentra embarazada.

Un accidente doméstico (bastante absurdo y forzado, por cierto) les provoca la muerte, y el alma del anciano termina en el cuerpo de su nieto, quien resucita para dar forma a esta historia.

Lo primero que debo señalar es que la obra me resultó entretenida, pero no logró conmoverme. Y no me sale comentarla desde lo humano, sino desde el punto de vista crítico del exproductor. Apelando a una frase que suelo repetir con frecuencia, su mayor virtud se termina transformando en uno de sus defectos: la actuación de Martin Wong. Este joven logra realmente ponerse en la piel de un hombre de 70 años (su abuelo, que tras el accidente ocupa su cuerpo), aunque el personaje no evoluciona y se queda en ese rulo místico que el guion —bastante torpe, por cierto— le dicta. El romance no logra penetrar en el sentimiento del espectador, que solo percibe a un “viejo” confundido, quejumbroso, excesivamente amable y paternalista intentando desembarazarse del extraño dilema que lo aqueja, y a un veinteañero Ye Hai Yuan que no logra procesar el amor hacia el actual ocupante de su otrora despreciado compañero de clases. Me parece una lástima que la dirección de esta fallida obra no haya sabido explotar el talento actoral del primero para así darle un mayor margen de maniobra al segundo.

Taiwán suele ser prolijo en sus producciones; aquí falla tratando de imprimirle cierta originalidad a un recurso bastante clásico y remanido como el intercambio de almas, que termina jugándole en contra. El final es feliz, aunque apresurado, y bastante esperado, supongo, por la mirada exigente que no deja de “mirar el reloj” para cerrar esta historia. Esta última se percibe descabellada e inverosímil, y se empantana además en un mundo inclusivo artificial, plagado de modelos estéticos, en un ámbito universitario en donde la homosexualidad parecería ser la regla, con personajes protagónicos y secundarios carentes de profundidad que circulan solamente para darle fluidez y corrección política a un guion perezoso que debiera exigir mucho más. En conclusión, la obra promete erotismo, pero se desinfla por la lógica de una narrativa que además se torna extensa y cuya única salvación es aportada por el bajo riesgo de la trama y la duración de cada capítulo. Definitivamente intrascendente.


Fernando R.
Exproductor

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  • Score: 7.6 (scored by 3,975 users)
  • Ranked: #5946
  • Popularity: #2190
  • Watchers: 11,555

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