At the end of their third year of high school summer, childhood friends Yeonwoo and Dojin end up living together for about two weeks due to sudden house renovations. Yeonwoo, who has secretly had a crush on Dojin, spends each day nervously worrying that her feelings might be exposed, while also feeling frustrated about being unable to confess. One day, a transfer student named Baekha appears by Yeonwoo’s side, and Yeonwoo gradually opens her heart to Baekha, who approaches her warmly. Watching the two of them from a distance, Dojin finds himself overwhelmed by unfamiliar emotions for the first time…