Collection of short stories:
1.真夜中あたしに留まる蝶 - Mayonaka Atashi ni Tomaru Chou
2.彼氏彼女はお年頃 - Kareshi Kanojo wa Otoshigoro
3.子供ハ眠る後 - Kodomo ga Nemuru Ato
As children, Anri and Kouta had a sibling-like relationship. Fast-forward to ten years later and a bold suggestion, Anri and Kouta are now at a turning point of their relationship.