"A Story About a Girl Who Falls for Yuri Through a Pure and Innocent-Looking Beautiful Girl"

Shizuno, a high school girl, is called out after school one day by her classmate Yuina. She wonders why, since they don't usually talk much. To the confused Shizuno, Yuina confesses her love. Although Shizuno is in a relationship with a boyfriend and identifies as heterosexual, she declines—but a strange discomfort lingers in her heart, as if denying that very fact.