[RBK-003] I locked that female teacher in the school from Friday night to Monday morning and continued to until I got tired of. Freedom in Kana

Sana Matsushita has been a teacher for two years. I took charge of my homeroom teacher for the first time, and I didn't have much time to prepare for classes until late every day. When Sana was making materials in the library which was not popular as usual, the staff member Sugiura called out interestingly. Sana can not hide her vigilance in Sugiura who does not have very good rumors. However, Sugiura showed up in the library again for Sana.