Title: Chouchou Kumo (蝶々雲)
English Title: Butterfly Cloud
Creator: Ashihara Hinako (芦原 妃名子)
Length: 1 volume
Status: Complete

Best friends Kiyo, Kanta, and Goma live in a small, depopulated island in the Seto Inland Sea. One day, a transfer student from Tokyo arrives. Before long Ritsuka, a cute and fair-skinned girl, started hanging out with the three best friends, but what happens after?