"how does instagram work hahaha" (the first) ateez instagram au; it gets better!

a prince, a fearless girl, and a group of pirates. what can go wrong?

When mental institution nurse Young Hyejin suddenly disappears and convicted serial killer Choi San, a patient on the ward Hyejin works in goes missing, it is up to Hyejin's co-worker and close friend Park Seonghwa to save her, but things are much worse than it seems...