The Moment We Start Living Together, I Get Eaten.

Synopsis

Yuki and Megumi have been friends for as long as they can remember. Even as adults, these neighbors spend practically every waking day together, so it's no surprise that Yuki thinks of Megumi as her dear little brother. But one sudden eviction notice leads to them sharing Megumi's apartment, and Yuki's about to find out his feelings for her are anything but familial... (Source: Manga Planet)