Recommendations

• Reverse Gumiho Trope: Instead of a male Gumiho like Jang Ki Yong, Human X Gumiho flips the script with a powerful 2,000-year-old female Gumiho (Jun Ji Hyun).
• Immunity to Fox Magic: In both shows, the human lead breaks the rules of fox magic. While Lee Dam swallowed the fox bead, Ji Chang Wook's character is mysteriously immune to the Gumiho's manipulation powers.
• Romcom Vibe: Both dramas lean heavily into a bright, comedic, and high energy fantasy romance rather than a dark, tragic tone. Expect lots of chaotic bickering!
• Modern Urban Folklore: Both masterfully blend ancient Korean fox mythology into a stylish, fast-paced modern Seoul setting.

• Modernized Folklore: Both dramas brillianty bring traditional Korean Gumiho mythology into a chic, sleek, and modern urban setting.
• Mythical-Human Romance: Both stories revolve around the complex, destiny bounded romance between a human with a special fate and a multi century old Gumiho.
• Intriguing Power Dynamics: While Tale of the Nine Tailed showcases a powerful male Gumiho, Human X Gumiho flips the dynamic by featuring a powerful 2,000 year old female Gumiho who meets a human man immune to her ancient magic.
• Action Meets Comedy Romance: Expect a balanced mix of thrilling supernatural action, intense folklore mysteries, and charismatic bickering between the main leads.

Kim Young Kwang is the ML in both - and the character he plays is very similar (almost identical!) — rich capable guy who appears aloof and cold because he’s trying to hide his weakness - in this show he has a weak heart, in TSLOMS he has face blindness. Both are light bingeable rom-coms.

1. Enemies to lovers
2. Fantasy-Driven Hooks
3. Survival-Based Forced Proximity
4. Fate vs Free will

First of all, they share the same director. Both dramas have a similar trope: betrayal! Xu Mi Yu and Yu Meng--- they both appear to have a perfect and flawless married life at the beginning. Both of their ideal married lives shattered right on their anniversary. Though Yu Meng is an heiress, she seems to find her husband swallowing her family's wealth with the help of his scheming wife, who happens to work in Yu Meng's household as a housekeeper!!! While Xu Mi Yu does not have a perfect family!!! But they both share the same interest- to rebuild their lives after betrayal and reclaim their life on their own!!

Both dramas are a push and pull dark romance with toxic/obsessive love between the main leads. They both have an intense vibe and moody lighting.

In both dramas the ones being pursued have an awakening to their true self due to facing their pursuers desires (they switch their 'position').

Both dramas give us an age gap relationship with the top being much younger.

Both dramas give us a relationship dynamic between one who is emotionally volatile and one who is composed.

In both dramas the plot is focused around the relationship and how the characters respond in certain events and situations.

Both are fun crime dramas with both male and female leading characters, and an interesting squad working together. In both, the lead character solves things using unconventional methods - Jin Isoo because he’s a chaebol, and Sa Dochan because he’s a conman. In both Flex X Cop 2 and Switch, the female lead mostly welcomes and agrees with the male lead’s unconventional approach.

Both are fun crime dramas with both male and female leading characters, and an interesting squad working together. In both, the lead character solves things using unconventional methods - Jin Isoo because he’s a chaebol, and Sa Dochan because he’s a conman.

Both FLs are downtrodden and badly mistreated humans who cross paths with the ML who is a supernatural being and falls deeply in love with her, protecting her from everything.

- ML seeking revenge for the death of his family
- ML infiltrates his enemy to seek said revenge
- Atypical MLs (LoZH: emotional and submissive. AP: cheeky and bubbly)
- Both dramas deal quite a lot with superstition (folklore, occult, astrology, etc)
- Dark, gritty and heavy dramas with good acting and good direction

Both are crime comedies with a chaotic group working together. Both are on the lighthearted and easy-to-watch side, with fun strategies and humour.

I think it's the most popular c-drama about romantic relationship between fake siblings. Adapted from the web-novel too

Both Spooky in Love and While You Were Sleeping involve fantasy elements and a supernatural mystery that brings the ML and FL together. Instead of simply focusing on romance, both stories have the leads teaming up to deal with strange situations, working together to uncover the truth and solve the problems surrounding them. Their relationship develops naturally through these shared experiences, as they slowly learn to trust and rely on each other.
The combination of fantasy, mystery, teamwork, and romance gives both dramas a similar vibe.

Both MCs are tasked to complete a mission by going undercover. The tasks gets harder as the story progresses due to factors and surroundings.

Both MCs are tasked to go undercover for a mission. The mission seems doable but gets harder and creates more pressure on them as they both tackle through many aspects. There is a slight romance factor.