``Practical sex education,'' which was started as part of a measure to combat the declining birthrate, involves teachers using their own bodies to provide ``direct'' sex education.A married female teacher with a husband and two children is embarrassed and feels guilty towards her family. Although he was conflicted, he decided to teach for the sake of his students. Direct sexual guidance from a male teacher to a female student, and a male student's sexual desire going out of control as he developed feelings for the female teacher who returned to work after giving birth...! ? *The contents may differ depending on the distribution method. Special Feature: Click here for the SOD GROUP Store, which is full of great deals, including the latest releases and sale items!