Hardened hit man Juzo Ogami is in for the mission of his esteemed careersurviving life as an average middle school student!

Mitsuoka Pharmaceuticals is responsible for Juzo Ogamis sudden transformation into a middle schooler, and now Juzo is in a fake relationship with none other than Noren Mitsuoka, the heir to the company! But that means having to protect his position from the numerous men who seek Norens hand in marriage. The challengers include fellow hit man Shin Kohazame and superathlete Tenma Tendo. Can Juzo defeat all of them?!