Red Blue

Both focus on weak and timid teenage boys who experience bullying at school, which pushes them to learn how to fight back. As they grow in their fighting skills, they also mature and develop in personality, making new friends and enemies along the way. Both become underdogs and work hard to get stronger and better.

RB focuses more on MMA and structured competition, while Boyhood features street boxing, but both include a lot of satisfying ass whooping.

1. Setting: Both are centered in high school environments, where students face conflicts beyond academics.


2. Action and Conflict: They involve intense physical confrontations, emphasizing martial arts, fights, or action sequences as part of the plot.


3. Themes of Growth: Both shows delve into themes like friendship, rivalry, perseverance, and self-discovery as the characters navigate challenges.


4. Youth-Centric: The stories capture the struggles, emotions, and aspirations of high schoolers, blending drama with adrenaline-fueled action.

Suzuki Aoba, a gloomy high school freshman who has always lived an unattractive life, was enjoying his school life, even though he was occasionally beaten up by his classmate Iwase Sannosuke in what he called "play fighting".

One day, he is saved from the "play fighting" by Akasawa Kenshin, a superstar in the martial arts world who is attracting attention in the next class, but Kenshin suddenly says to him, "You're empty...", and Aoba cannot forgive him and declares that he wants to "punch him once". After being introduced by Sannosuke, Aoba enrolls in the Shark Gym, which is about to go bankrupt and is run by Tokiwa Kanenari, and enters the world of "MMA" (mixed martial arts)!

Those are Japanese short dramas with multiple MLs.
Both are strong bromances with insane chemistry
Both casts consist of actors, who previously took part in BLs, so can be considered as fan service in some way