On the night of his favorite game's shutdown, Akira Oono awakens in the body of his online character: Demon Lord Hakuto Kunai.

Rejected by the gorgeous Adagaki Aki for his weight, Makabe Masamune slims down, adopts a new persona, and reemerges as an attractive teenager. His goal is to make Aki fall for him, then reject her as harshly as she did him.

Determined to climb up the social ladder, Mary Saotome invests everything she has into what her elite high school values most: high stakes gambling.