Series by 葉月抹茶

Yuuki Hase, a high school boy, is determined to befriend his quiet classmate Kaori Fujimiya, who always sits alone. When he finally approaches her, Kaori reveals a heartbreaking secret: her memories of friends reset every Monday due to a past trauma, leaving her isolated. Undeterred, Yuuki decides to start anew each week, writing notes in her diary to help her remember their time together. As their bond deepens, Kaori begins to confront her past, and Yuuki learns the value of perseverance and connection.

Shun Asakura has always struggled to express his true feelings, a trait that kept him from confessing to his childhood crush, Sana Wakatsuki, before moving away. Seven years later, Shun returns to their hometown, determined to finally share his heart. But his resolve is shaken when he encounters Ayumu Fujisaki, a boy who looks exactly like him yet embodies the confidence and openness Shun wishes he had. As Shun navigates his feelings for Sana and the mystery of Ayumu, he begins to question who he truly is and what it means to be himself.