Help!!

I remember this manhwa, it’s comedy(?) romance. I think the FL just ask a stranger if she can get his number(?) then the stranger which will become the ML just ask back if she can be his girlfriend and TADA!! they are a couple. I don’t remember much but I think I laugh a lot of time while reading it. I also remember that they ate ice cream with weird flavor like soy sauce(??) then they wipe each other’s faces with ice cream?? Idk but please if you know helppp!!