Yoshii is a student at an all boys school. He's infatuated with the school nurse, who basically flirts back with him and leads him on. While having lunch with sensi, yoshii gets a warning from one of the smartest students that love between a student and teacher won't work out. Which yoshii does heed his warning and distances himself. On a rainy day, yoshii ends up running into sensi, and passes out, he wakes up to a hot sex scene between sensi and the smart guy. The sensi is a heart breaker!
Nure Nezumi-tachi no Koi