Douse, Koishite Shimaunda.

Mizuho Nishino turns 17 in the summer of 2020, just as school events and trips are being canceled by a new disease. The sparkling high school life she imagined seems to be disappearing before it ever begins. Then Kizuki, one of four childhood friends who have grown up beside her almost like family, makes an unmistakable request: he wants to be her boyfriend.

Mizuho has always treated the four boys as a permanent part of her everyday life, making it difficult to see Kizuki as someone with serious romantic feelings. The change does not stop with him. Emotions long hidden inside the group begin surfacing one after another. Between her dream of becoming a manga artist and her fear of breaking bonds built over years, Mizuho has to discover what she truly wants instead of simply preserving what has always felt safe.