...Under One Roof

When Yuzuriha Kyuuta was just a child, he made a heartfelt promise to his childhood friend Ririko: they would marry each other when they grew up. After being separated from her since elementary school, the now high school freshman finally sees an opportunity to reunite. He enrolls in her current academy, a prestigious private institution formerly reserved exclusively for wealthy young women that has only recently begun admitting male students. Driven by years of anticipation, Kyuuta is determined to find Ririko and fulfill the vow they shared long ago. However, his grand reunion quickly spirals into unexpected complications. Not only is Kyuuta inexplicably assigned to live in the girls' dormitory, but he also discovers that Ririko serves as its head. To make matters worse, she appears to have no memory of him or their childhood promise whatsoever. Thrust into an unfamiliar environment surrounded by female classmates and overseen by the very girl who has forgotten him, Kyuuta faces a daunting challenge. With his living situation already defying convention and his most important bond seemingly erased, he must navigate this bewildering new reality and find a way to remind Ririko of the future they once promised to share.