The Painless Shinji

In Kyoto Kiyomizu High School, Shinji Takanashi, the cocky son of legendary MMA champion (Shinbo Takanashi), navigates the hallways with a reputation as the “painless” Shinji, do to his C.I.P.A, boasting an unhurtable body. His arrogant demeanor and bullying behavior attract attention and fear, but his life takes a dark turn when a gang called the Purple Dragons targets him.

After a brutal setup orchestrated by the gang using a seductive girl named Sarah Kimura, Shinji faces a vicious beating that shatters his confidence and exposes his vulnerability. Forced into servitude under the Purple Dragons, Shinji struggles with the legacy of his father, who he never even met.

Meanwhile, at the Dragon’s Den Bistro, the gang’s triumphant celebration is disrupted by a mysterious chef and his assistant, Harumi Mizuki, whose fearless attitude hints at hidden depths. The gang leaves the restaurant with their pride bruised and bizarre kitty stickers as a parting gift.

As Shinji returns home, battered and defeated, he receives an ominous envelope containing a photo of his father with a chilling message: “The chef killed him.” At the same time, the chef and Harumi find a similarly disturbing letter, but this time with Shibo's mutilated body, saying "I want my revenge" hinting at a dark connection to Shinji’s father’s death.

Shinji, now entangled in a web of gang violence, family legacy, and mysterious vendettas, must confront his own weaknesses and discover the truth behind his father’s demise. The chef and Harumi must figure out who sent the message before his past comes back to haunt him.