Recommendations

Both works feature death game struggles among the players. They have to clear the games in order to survive.

Twilight Samurai is set around the time during the Boshin War and before Meiji restoration and it similarly deals with a samurai struggling to make ends meet and support his family just like Shujiro in Last Samurai Standing

Badass female lead gets revenge punishing the bullies who treated her life like a joke plans and strategically takes them down one by one unraveling secrets on the way

Badass female lead both fighting for what they believe on fully in the grey doing everything to get theirs whether its right or wrong

Battle Royale is considered to be the first movie with the "death game" premise and inspired other movies and shows that featured similar concepts. It no doubt has some influence on this drama as well.

Both are set in eras where samurai have lost their positions and deemed worthless. The samurai were left to literally forage for scraps because of lack of work and some had to resort to drastic measures just to survive.

Revenge as the main course

Both shows are powered by one core energy: “I suffered. Now everyone else will too.”
The leads in both dramas rebuild their entire lives around getting justice for past trauma. No side quests. No distractions. Pure revenge cardio.

Both have a female lead who is NOT soft, not innocent — but calculated and brilliant. If Queen Mantis gave you that “I support women’s wrongs” energy… The Resurrected does the SAME.

There is more than 1 love interest (1 of them being his best friend) in both of them

The best friend is jealous whenever the mc interacts with any of the love interests

without giving too much spoilers, both are tragic love stories that both of them are willing to sacrifice themselves to save the other and be together, one is a historical bl and one has some elements of it, both are supernatural. I highly recommend checking kill to love if you liked the main leads dynamic.

Both involve a semi-dystopian setting and desperate people being forced to fight to survive or be killed on an island.

Both involve a group of people being forced to play games to the death.
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Both dramas share same writers, feature abusive parents, tragic love, and sadness; one has time travel, the other thriller .

They have the same basis of time travel, but it's still a little different.
I'll let you see what's different. ?

Both of them are mini dramas with 9 minutes episode format for 23-24 episodes. They're fast paced with element of thriller, tech and societal commentary. They're both aired in 2025 with similar quality. They both are in a plausible sci-fi setting which focuses more on internal feelings such as grief with the technology being a background element.

In Higher, Jiang Zhen and Bai Fan are searching for the cause of Jiang Zhen's sister's death even though three years have passed. There's a strong bromance (that's kinda borders on bl), themes of grief, disillusionment, corrupt tech and showing up in one's life after it being entirely wrecked by grief. In Dangerous Relationship, Liang Simu and Yue Ling are investigating Liang Simu's sister's death even though 5 years have passed. Both Liang Simu and Yue Ling's lives were never the same after Liang Siyuan's death and Liang Simu is determined to find the truth through a tech project which would help him find the truth. There's some bromance and portrayal of corrupt tech (though corrupt tech theme is stronger in Higher)

While Higher is more character driven and has a lot of elements of angst and is almost sprawling many elements such as comedy, plot twists, interpersonal relationships, trauma inside it, Dangerous Relationship feels more coherent and linear because it takes itself seriously and never loses sight of what it's trying to communicate. But both of them are pretty much angsty with many overlapping themes and elements. Lastly, in Higher, Jiang Zhen and Bai Fan in threat of being stuck in a virtual realm and in Dangerous Relationship the primitive code is also a type of "virtual" realm which can hurt the leads.

C/W for Dangerous Relationship:
It discusses heavy themes of abusive toxic relationships and things such as harassment, manipulation and blackmailing. If any are triggering for you, please watch with caution.

TL;DR: IF YOU LIKED HIGHER YOU'LL 100% LIKE DANGEROUS RELATIONSHIP + VICE VERSA.