New Female Teacher: Immature Career Guidance (2014)

In the summer before graduation, high school students Akira Takizawa, Michio Oshima, and Osamu Kobayashi attend supplementary classes. A new substitute teacher, Natsuko Izumi, joins them due to the homeroom teacher's maternity leave. Natsuko maintains a detached demeanor, a result of a past where she kept emotional distance from students. Meanwhile, Akira is retaking his senior year after committing a violent act to protect his classmate Shiho Matsuyama from the head teacher, Yamashita. When Yamashita discovers Natsuko’s past, he threatens and manipulates her. Akira witnesses this and is drawn to Natsuko, though confused. Shiho is also troubled by her feelings for Akira. Yamashita then proceeds with his plan once again.