Sono Apartment, Zashiki Warashi Tsuki Bukken ni Tsuki...  

Because the apartment, with the Zashikiwarashi, A Zashikiwarashi Lives in that Apartment, そのアパート、座敷童子付き物件につき・・・

Ryuutaro Saeki, at 32 years old, has recently divorced and is now residing alone once more. In his search for an affordable housing option, he stumbles upon a suspicious property. Upon entering the room, he encounters a Zashiki Warashi, marking the start of an unusual and amusing shared life between the two individuals.