College freshman Tada Banri still has no memories of his life before graduating high school while Kaga Kouko still isn't ready to let go of her first love, Mitsuo. But, the trio have bigger things to worry about than the past. Oka Chinami is organizing a freshman-only party and everyone's invited! With Banri's feelings for Kouko, Kouko being dumped by Mitsuo, Mitsuo's crush on Chinami, and Chinami providing the alcohol—what could possibly go wrong?