Sayuri-san no Imouto wa Tenshi

Synopsis & Lore

Sayuri hasn't seen her little sister Mikoto in over 10 years since their parents split up. But one day on her way home from work, she sees Mikoto sitting in the playground... with wings and a halo!? Mikoto claims that God gave her these wings when she asked to see Sayuri, and she decides to start living with Sayuri.