Gathered for a summer tennis club training camp, female students face mounting pressure. Just before the tournament, Emiru wets herself in front of everyone due to stress. That night, while her admired classmate Aoi is bathing, Emiru steals her used toilet paper. The next day during practice, the incident nearly gets exposed, causing Emiru to soil herself again from nervousness. After the accident, Momoka kindly wipes Emiru's bottom—Momoka, who secretly harbors feelings for her. Through the theme of incontinence, the story portrays the girls' delicate emotions and a developing love triangle. A tale where innocent purity and hidden desires intertwine within everyday life.