The fiercely loyal delinquent, Takeru Narihira, finds himself in trouble during a school trip to Kyoto when a gang of thugs picks a fight with him. With his unmatched brawling skills, he easily comes out on top. However, right after his victory, he gets caught in an accident—and when he opens his eyes, he finds himself in a world he has seen countless times in his dreams. Right before him, the beautiful girl he always chased in his dreams is about to be attacked by a terrifying monster! With nothing but his fists, Takeru swears to protect her. But as he delves deeper into this new world, he discovers a hidden truth that connects him to it. "I will protect you. Even if it costs me my life!" A modern-day delinquent unleashes his fists in another world in this passionate, action-packed first love fantasy!