Makabe Masamune who is an overweight child was ruthlessly bullied and teased by a girl named Adagaki Aki. He undertakes stringent personal transformation and self improvement regimen to exact his revenge upon her. After several years past, Masamune re-develops as a new man who is popular, good-loooking, has perfect grades and excellent in sports. He transfers to Aki’s academy and is unrecognizable to her. Masamune is now ready to confront and humiliate Aki who has harrassed him many years ago. However, will the vengeance be as marvelous as he expected?