Well this is all about the orig owner of the body, in high school there is a girl who has a red tide and her a$$hole of a classmates took her napkin and moondae saw it and protected her for bullying her but the outcome is bad the girl traumatized by it and didn't go to school and needed to go to the hospital for therapy and moondae's classmates the bully spread the news that moondae is a pervert and the one took the napkin for the girl since then moondae dropout to school too...
If i remembered correctly hahaha
Alright, spoiler, this is the summary of what's to come
Moondae's "past" will get exposed soon and he'll be accused of stealing his female classmate's pads, Moondae will be in a dark place in those few and I say very few chapters as he does not know how to fix that situation at all and panics ,big sejin and ahyeon goes to see moondae, big sejin insistently tries to squeeze the details out of moondae and moondae finally snaps and blurted the fact that he (the previous moondae) "tried" to commit suicide, ofc he didn't say about the fact that he was not the "original" moondae, and that he didn't remember anything about his past, Eugene and Raebin overheard him outside of the room, that's all, I won't spoil further, but I will if you still want more
So basically the aftermath of the scandal? Ok another spoiler ahead..
So Moondae easily wanted to drop out of the show at that moment without any hesitation but seon ahyeon and big sejin forcefully stopped Moondae from doing anything that he'll regret and asked him to wait until the very next morning at least, after a bit of a back and forth argument, Moondae finally give in and let them have his way, he then waited the next morning and out of a great miracle, during the time he slept, something happened in the public discussion board, it was the original moondae's classmate, the victim of the pad incident, she expressed her concern towards moondae and quickly told the real story of what actually happened, moondae was just a quiet kid and gotten sucked into the bullying all because he was quiet and had no friends, he dropped out of school months after the victim herself dropped out, the victim reached out to moondae as she felt guilty for what has happened to him but he said it was alright as he was planning on dropping out either way and told her that he will support her if she ever wanted to fight back against the bullies, she considered moondae as a good friend, but soon could not reach out to moondae anymore as his phone number did not exist anymore ( so basically the original moondae already committed suicide during that time ) , so she was surprised when months later she saw moondae in the idol inc show, she was happy for moondae and could not let the people who spread the false rumors get away with it, so she made the post without a second thought, so moondae felt relieved when she posted the full story and also relieved that his friends stopped him from doing something he will most likely regret.

Ohh.... It's coming.... The "RED TIDE" issue....