Banri Tada suffers from amnesia as a result of a catastrophic catastrophe, erasing his memories of his homeland and history. However, after meeting Mitsuo Yanagisawa, he chooses to leave and start a new life in law school in Tokyo. But, just as he's settling into college life, the stunning Kouko Kaga unexpectedly enters Banri's life, and their accidental encounter marks the start of an extraordinary year. Banri discovers that he is in a new location and a new world after experiencing college life—a place where he may be reborn, meet new friends, fall in love, make errors, and develop. And, as he comes to realize who he is, the route he has chosen brings him to a conclusion.