Kazue Itō

Coco, Tsumuji, and Satoru, patients of a mental clinic who believe the world will end, escape from the clinic and search for a place to picnic so they can watch the end of the world.

Kawana Tsugumi works at an interior design company. She happens to meet her first love Ayukawa Itsuki from her high school days. He is now an architect and in a wheelchair because of an accident.