As a senior high school student, the college entrance examination is everywhere in society, school, and family. During this stressful period, everyone is actively preparing for the exam, except them, of course! They didn't know each other at first, but they became friends because of various coincidences. During their senior year of high school, they did all kinds of incredible things just because they wanted to. They each have different stories and pasts, but they all have their own choices and their own future.