Romance mango

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So, i've been lately trying to remember this one super vanilla manga that had basically no drama and was super chill, I've tried googling multiple things but I guess I just suck at it.
It's about a guy who almost never leaves home and his home is always full of different/exquisite objects, which I dont remember if it's stuff that his dad brings and leaves around or his friend, but basically during the manga he and his friend always have parties around friday's or a specific day or so, and one of these days their neighbour(I think?), a girl, comes in and ends up having fun and chilling around with them, eventually she is invited to the next "party", were they just chill around and talk with each other, the manga then procceds with her eventually coming around just to talk with MC and MC also inviting her in as they, without any drama, end up in a relationship. It ends I think 10 chapters after their first time in a happy note.

If I remember correctly the manga has around 30~40 chapters.

Pic unrelated.