ML is very quick to start treating MC like his darling wifey, even though MC is prone to physical violence, haha. Then, near the end after all the character development, ML gets it into his head that he's no good for MC and that they should separate—a complete 180 degrees, but still delulu.
After turning into an amnesiac, ML loses so much reason. Half the time he twists MC's words into things he wants to hear, and when MC tries to argue, he pulls out the puppy-dog eyes. Plus, in ML's viewpoint, everybody whom MC interacts with is a threat to their relationship, which is supposed to be professional. Our guy is going to regret everything once he gets his memories back.
ML is a dokkaebi from 1500 in the past. Not only does his conduct in public gets him dragged away to institutions, but he also keeps insisting that MC is his past lover—which is likely, but his attitude is still crazy!
ML is the latest crush of MC's friend, and if he's anything like the last guys, he's probably bad news. MC keeps an eye on ML but ML misinterprets his prickly behaviour as a crush.
Waterside Night