MMXX

A story about a group of boys who serve as Kpop band named Monsta X iN Seol, South Korea. One day they all went missing with 3 of their Team members commited suicide.
Shi Eun Sara Lee, a young university girl who admires them starts to get mysterious clues, as one day she opens her Music app and find there was no song from Monsta X existed, The band vanishes from the fold of History and she is the only one who knows about them. She would be the one to bring all of them back to their own Time Dimension. As they got Lost.