Kawashima, after flunking his college entrance exams twice, is compelled to leave his current abode and settle in an apartment community. Things take a turn for the better when the wall between him and his neighbor collapses. The collapse lets him achieve his longtime dream of encountering a stunning high school student. However, Imori's unusual conduct piques worries about her actual identity, for even though she lives solo, she dresses in her school uniform non-stop. Is Imori genuinely who she seems or not?