Shimobee(2022)

A MYSTERIOUS MAN POP UP WHEN A CERTAIN GIRL IS IN TROUBLE

Yurina, a mystified high school girl, casually downloaded a mysterious app. Since then, whenever Yurina is in trouble, a silent, mysterious old man servant appears and helps her! Adapted from the manga "Shimobee" (しもべえ) by Murata Hiroyuki (村田ひろゆき).