College AU in which Red Velvet are broke students who find a sketchy babysitting job through their equally as sketchy friend, Son Chaeyoung. Unknowingly, the job involves them babysitting the Japanese Princess who has  been locked away for far too long, Sana Minatozaki. ft. Princesses and DubChaeRiLi ult friendship goals.

The students of Soul Acadaemy are to be tested, trained and given tasks to keep the world at peace from the SoulEaters and Voids, both dangerous monsters that would do anything to eat a soul of a human. A weapon made from the human soul is the only thing that could pierce, wound and kill the SoulEaters and Voids.  It is a new year and new freshmans arrive at their new school in order to become peace keeping mercenaries.