The manga centers on Shin Kiba, a middle school student who accepts his destiny as a human weapon in order to fight evil and protect Japan.

Minato Sahashi is a loser who's failed his college placement exams two years running. But just as he's contemplating giving up and moving back in with his mom, a chance encounter changes his life forever! En...

Spin off of Sekirei. Takes place 365 days before the return of Musubi. The tagline is "One year with his girlfriend gone. One year until she returns." It was collected as the 19th volume of Sekirei.