ML is the FL's closest family

Goblin She's virtually an orphan, he is too. They take each other in. 

Cutie pie BL. They are sworn Brothers and betrothed. We see no other family members, except in flashbacks. 

All Out of Love one of the ML is her brother, but it's a bit complicated. Very very strong love Triangle. 

I need romance 2 they are childhood sweethearts and long time roommates. They have a brother sister relationship. 

The time we were not in love They are the best of friends. The drama is a remake from a Taiwanese drama. Many remakes. 

Thanks, wish there were a thumbs up option so that I could express my gratitude. Got a few good recommendations I haven't seen before, so thanks, both of you :)