Arajin has returned to the city where he grew up, and like any high school student, he aspires to be popular with girls.
Arajin grooms herself carefully as he practices his best lines, but before he can finish, his mother yells at him and tells him to eat breakfast.
Meanwhile, at an old shrine, a pair of juvenile delinquents wake up hungover and hear noises inside the dirty altar.
They remember a story about invincible warriors related to the place, they begin to listen growls and run away.
Arajin arrives at his new school, and the principal promptly informs him that there are two factions, Minato Kai and Siguma, who are constantly fighting each other.
Arajin doesn’t care, he simply asks if there are cute girls in his classroom.
All of his companions have a frightening look, but among them, Arajin glimpses Mahoro, a pretty girl who steals his breath.
Mahoro begins to talk with Arajin, and he cannot hide his joy, while other students see another victim in him.
Later, Mahoro tells Arajin to accompany her to her house, and that she will wait for him outside the school, but before he can do so he is intercepted.
Fleeing the classroom, Arajin runs into a huge student, Mataraka, who turns out to be an old acquaintance. Mataraka is excited to see him and does not hesitate to brag about how tough he used to be, although Arajin does not feel the same and thinks their encounter is bad luck.
Mataraka is one of the leaders of Minato Kai, and it turns out that the leader of Siguma is Mahoro’s older brother. He keeps remembering Arajin as a great guy, but his friends doubt him and soon put him in trouble.
To avoid receiving a beating, Arajin runs away in his underwear and ends up in the old temple, where he finds a strange gun and tries to defend himself, but when he fires it, he ends up being hit and unconscious.
When he wakes up, Senya appears in front of him and tells him that she will grant him a wish. Despite seeing him from the front, Arajin doubts that Senya is a genius.
Mahoro asks Arajin out, and he demands Senya not to interrupt him. At that moment, Mahoro’s brother appears and the girl asks Arajin to fight for her.
Her brother is furious, and Mahoro is excited to see him jealous of her. Arajin takes a beating and Senya thinks that she has once again failed to find a warrior who never gives up.
But before she loses all hope, he hears Arajin say that he doesn’t plan to lose his life like this. Senya offers him a wish again, and seeing his determination, he joins him and gives him the strength to defend himself.
(ぶっちぎり?!)
