Touka Gettan Season 1 Episode 20

Peach

The three Butterfly Sisters host a peach picking event where the participants can pick and eat as many peaches as they like, but one third of the harvest must be given back to the Butterfly Sisters in return. While out in the orchard Tōka runs into the Butterfly Sisters and gets trapped in a strange dimension with them. There, he finds out the truth of his existence.