L♥DK

Nishimori Aoi's parents moved to another city for work, but Aoi didn't want to transfer to a new high school. She stays behind and lives in an apartment by herself. Shusei Kugayama moves in next to Aoi's apartment. Shusei is a very popular student at their high school. Due to a mistake, Aoi makes the fire sprinkler go off in his room. Until Shusei's room is fixed, he stays with Aoi.
(Source: AsianWiki)
~~ Adapted from the manga series "L-DK" (L♥DK) by Watanabe Ayu (渡辺あゆ).