Ying and Yang (Muzan X Oc)

Muzan is the demon king, merciless to almost everyone.That is until he runs into Ruruke severely injured from a fight she just had.He takes her in and helps her recover. Muzan senses that Ruruke is hiding something but what could it be.Both living double lives one as supernatural creatures and the other as university students. Will their secrets balance the world or cause destruction??

KEEP READING TO FIND OUT!!!!