As an overweight child, Makabe Masamune was mercilessly teased and bullied by one particular girl, Adagaki Aki. Determined to one day exact his revenge upon her, Makabe begins a rigorous regimen of self-improvement and personal transformation.

Years later, Masamune re-emerges as a new man. Handsome, popular, with perfect grades and good at sports, Masamune-kun transfers to Aki's school, and is unrecognizable to her. Now, Masamune-kun is ready to confront the girl who bullied him so many years ago and humiliate her at last. But will revenge be as sweet as he thought?

(Source: Seven Seas)

With a total sales of 2.5 million copies and a super popular anime, the spin-off of the [Masamune-kun no Revenge] is finally here!!

Even though Masamune Makabe's lost a lot of weight, change his family name, and stood on the top of the caste as a super hunk, somehow happenings with “ReOOO” occur every morning he comes to school, confusing Aki and his other friends...