SONE-619 I was perfect in both studies and club activities, and was the most popular girl in the world. But after one accident, I became the class toilet. - Riri Nanatsumori

[Nanatsumori Riri's first uniform work is super cute!] ...But she wets herself and gets passed around. Nanatsumori Riri is the most popular girl in school, with both intelligence and beauty, and is at the top of the school caste system. The long-awaited school trip is approaching, and she has gathered with her classmates from the same group for a meeting. There is another girl, her best friend, Sachi. However, every time the boys open their mouths, they only talk about Nanatsumori, and Sachi is always used for convenience. Her jealousy is growing, and she finally takes action. She puts a diuretic in Nanatsumori's drink. Her urge to urinate increases and she rushes to the toilet, but she can't make it in time and wets herself. "Are you okay!?" Sachi pretends not to notice and immediately approaches Nanatsumori to clean up, but Nanatsumori goes home from embarrassment. And then the day of the school trip. Nanatsumori is enjoying herself as if nothing had happened. "Thank you for keeping quiet about what happened the other day." "Of course! We're best friends after all." Nanatsumori is overjoyed at her best friend's kindness. She doesn't realize that she will wet herself many times after this...