Mai Hanasaki (Anne Watanabe) and Ken Soma (Takaya Kamikawa) work for Tokyo Daiichi Bank and their job is to fix problems that arise at various local bank branches. Keisuke Matsuki (Hiroki Narimiya) is an enthusiastic and honest bank teller. While working with Mai Hanasaki, he develops feelings for Mai Hanasaki. Meanwhile, insensitive Mai Hanasaki is oblivious to Keisuke's feelings towards her.