少年カンテラとハイツコール

Heights call! Heights call!

Kantera, an apprentice employee of the "Yomi Railway" that transports the souls of the dead, is entrusted with the one-day caretaker of "Heights Kagamino" , which is built on the road to Yomi.

"Heights Kagamino" seems to have a service that responds to requests from residents called "Heights Call" ...