Rin Ishida is about to go on a class field trip to Tokyo, Japan, the place he was born and the place he left six years ago. His class is going there to explore the Japanese culture with Kousai high school; the same high school where his former best friend, Takuya Chiba, is attending. After Rin moved to New York due to an accident, Takuya has held bitter feelings for his ex best friend, feelings that seem to be too broken to fix. But what happens when the two cross paths again? Will their friendship mend and become stronger or will grudges and secrets turn to lies and mishaps?