Mizuki Yoshida is a 24-year-old part-timer at a restaurant. His boss is urging him to stop part-time work, but Yoshida has no idea what to do with his life. Meanwhile, Watase is an office lady that’s always being yelled at by her boss. Both Yoshida and Watase ride the same train home, where Yoshida has watched Watase diligently read books for the past half year. What will happen to their lives when he finally decides to reach out to her?