Be bad for me. [Seijuro Akashi.]

Introduction.

Often in high school you would have your genetic groups - the nerds, the cheerleaders, the popular girls, the jocks, the fuckboys and so on. 

Ayumi Sazuki wasn't any of them. 

The only common thing they shared was staying up till dawn - and these were the people who were either lonely or party addicts. 

But she didn't fit into any of those two categories either.