Volume 1 synopsis: Tsumugi Yoshiie (28) lives alone on the second floor of a luxury high-rise. She works from home as a traditional Japanese seamstress, and her first lover, Mashimo, sends work her way. Tsumugi has a weakness for men when they show their vulnerable side. One day she is elected to the building's management committee, where she meets a man named Hirara… Mashimo lives 200 meters away from Tsumugi's apartment; Hirara lives 200 meters above it. A vertical-and-horizontal love triangle...
