Don't really remember the title. But I think it was quite popular at least 2 to 4 years ago.

The plot went on something like this:

• about a guy moving into a house/apartment with lots of (weird) people.

• there was this girl who had multiple personalities. One was very nice, the other kinda psychotic...

• was shounen, I think

I don't remember much else.

Thanks for reading! 🙂

Sounds like Mahoraba

If it's not Mahoraba, then it could be Acony, which was never really scanlated/popular.

Quote from Swegg

Sounds like Mahoraba

Bingo! Sometimes you folks are so good at finding forgotten titles, that you frighten me. 😛

Quote from Xeronia

If it's not Mahoraba, then it could be Acony, which was never really scanlated/popular.

Awww you were close. Good guesses, though. 🙂