[ Anime XXX ] Joshi Ochi! 2 kai kara Onnanoko ga Futte Kita 02

Aikawa Sousuke works part-time and lives in a run-down apartment with his family. One day, he hears a creaking sound coming from his ceiling, and then the inhabitant of the flat above him, Unyuu Sunao, falls through a hole that appears in his ceiling and onto his bed, causing him to lose consciousness. Sousuke and Sunao's hilarious existence of sharing a home begins with this introductory statement.