L.DK (2014)

Aoi Nishimori's (Ayame Goriki) 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 (Kento Yamazaki) moves in next to Aoi's apartment. Shusei is a very popular student at their high school. Due to a mistake, Aoi makes the sprinkler go off in his room. Until Shusei's room is fixed, he stays with Aoi.