Come and Hug Me

The dramas differ completely in terms of genre, so they give very diferent feelings (though you'll wanna hug the leads in both hehe), but they have some similar points (spoiler alert):
- A trauma in childhood that greatly affects the characters' adult life;
- Supportive families, but with some sibling (between brothers) issues;
- A solid, lovely main couple that isn't bothered by third parties. They meet when they're young, go their separe ways and only meet again as adults. They trust each other from the beginning until the ending.

Both dramas are about passing time. Both characters love only each other every time when they meet again.

Both dramas have a dark and creepy vibe and are about a serial killer connected to the past and present. Both MLs seem to have a dark side/are believed to have a dark side.