Lucky - Naekusaba

Everything was set for Junko's killing game. If she'd just gone about it the way she'd originally planned, it would've ended in unbelievable tragedy and despair. But at the last minute, there was a change of plans.
Makoto Naegi. A perfectly unremarkable boy with no discernible identity or personality. And yet, Junko Enoshima couldn't seem to kill him. She sent her sister Mukuro after him instead, and when their worlds collided, both of their lives changed forever.
Before you ask, yes, the cover is stolen fanart. It was way too good not to use and I couldn't find the original artist. I know just saying 'credit to the artist' without naming the actual artist is a total dick move, but I couldn't trace this back to anyone and it was freaking adorable, so. Sorry about that.