Help me know this anime (Lightly explicit)

I've seen this anime somewhere, if my memory doesn't fail me here's what i remember:
There's this guy and girl who both live in the same house, I do not know if they're reunited siblings that have been very distanced but they're fairly young and the guy likes a bunny girl streamer who draws, and that's who he is unknowingly living with, although he lives with this girl it's really awkward and uncomfortable when they talk to each other. That's basically as much as I remember, as for extra unorganized details I remember that the guy cooked her lunch / breakfast, I remember that in one of the earlier episodes the guy maybe plays piano, although, i'm not pretty sure about that one, i'm pretty sure the girl had white/grayish hair and (NSFW warning) an adult toy resembling a carrot.

I'm sorry for the NSFW but idk maybe it can help someone find it