Itsuka Tachibana is a high school girl living alone while her parents are working abroad. On top of this free lifestyle, she welcomes the new school semester with joy since she knows her crush, Nao Shimizu, is going to be in the same class as her. Lucky! However, with all good news comes the bad news, the building she got an apartment in is going to be dismantled, and she's being evicted! Itsuka, now trying to figure out where she can live, gets things arranged after being told off by her mom, and can stay with her mom's friend. The new place looks great, clean, and huge. Only one problem though... when she went to check out the bathroom... her crush is there!!! And he's naked?!?! She can't help but smirk any moment she looks in the direction of his coolness and cuteness and beauty... but she has to go nonstop in his presence and try to keep the joy off of her face?!