I'm Banging My Rival From A Parallel World!?
Nomi×Shiba
Karasugaoka Don't be shy!!
AniTomo - My Brother's Friend
Star x Fanboy
AWWWW ok i just finished this, was NOT expecting the author to infer fanboy's girl who had a crush on him to get with the older sister, AND I absolutely loved it! I think the way they reacted to things, their emotions, where very realistic. (Pretending to not realize something, but in a good way that made me laugh, and clearly communicating their feelings but at the same time it wasn't too easy/ in a human way.) SUPER cute, they both ended up loving the other just as much, a lot, and their feelings for each other was so pure, they both couldn't get enough. There was no sucky period in the webtoon, like a scandal or them in a huge misunderstanding, I love it can't say much more than that.
Isekai Omotenashi Gohan