The story follows the protagonist, Gaki, a former delinquent who died and reincarnated into his own past. He was once a notorious troublemaker in his elementary school days, but after his death, he was reborn into his 11-year-old body. With his memories of his past life intact, Gaki sets out to redo his life, determined to use his second chance to become a better person and make amends for past mistakes.
Now a child again but retaining his adult memories and personality, Boku decides to confront the people who tormented him—specifically his former neighbor, Sera Narumiya . Major Characters gaki ni modotte yarinaoshi