Onna Kyoushi (Fujii, Mitsuru)

Kyoko's a recent graduate who just began teaching at a local high school. Being a new teacher, she spends her days battling with the ups and downs that comes with the job. But one day, she notices that a student of hers, Sakurai, has been paying her a little too much attention, and when they wind up being in the same room after school....

(Source: JShoujo Scans)