Mikio is a married man and works hard for the company where he is employed. Then one day Mikio is diagnosed with depression. Mikio's wife is Haruko. They have been married for 5 years. Haruko draws comics for work, but they do not sell well. She mainly relied on Mikio for support. Meanwhile, Haruko did not notice any changes in her husband. She begins to blame herself for not noticing any signs. Mikio's depression derived from his work. His company has been pressing him to quit the company. After Mikio quits his job his condition improves, but the dynamics of their relationship changes.

Uchiyama Kaede and Shiina Kasumi used to be best friends. Now in high school, Kasumi grew more popular than Kaede, which has led her to continually bully her ex-best friend. One day after school, Kaede meets Kishida Takumi, a bike thief who's especially talented in picking locks. She asks him for a favour: if he could possibly open the key to the school roof. Meanwhile, the arrival of a new teacher seems to bring changes to the school.