There is currently for the title Shinseki no Ko to Otomari dakara

By the end of the week, the apartment is a mess, but it feels less empty. When his aunt arrives to pick her up, Hana gives Kenji a crumpled drawing of the two of them. As they leave, Kenji finds himself looking at the quiet, organized room and realizing that "staying over with a relative's child" wasn't nearly as stressful as he thought it would be. actual anime

: A male protagonist is asked to look after or house a female relative (usually a cousin) for a short period.

First, I need to address a likely translation or typing nuance. The phrase "Shinseki no Ko to O Tomari Dakara" does not correspond to a specific, widely known anime title in Japanese. It translates roughly to "Because I’m staying with a relative's child," which sounds like a description of a plot rather than a title.