blu_ixi

i'm trying to find an uncensored Korean romance/smut manhwa that I read a while ago. Here's what I remember:

- main couple are childhood friends, currently in college.
- female lead has orange/reddish hair, and male lead has brown hair
- male lead had a huge crush on her for years, then left to complete his military service and came back
- at the beginning of the story, the female lead tries to surprise him after he returns for his bday. she hid in his closet and accidentally catches him in a very embarrassing momen
- after that, they grow closer and eventually start dating
- there's also a second couple: the female lead's roommate, who ends up with another guy who originally liked the main girl
- it's a full-color, uncensored adult, manhwa

Does anyone know what series this is?