At a mountain lodge during summer camp, everyone has left for extracurricular activities. Hikari stays behind due to feeling unwell while her teacher remains as a chaperone but was caught lying about it. The teacher takes advantage of this opportunity by taking Hikari outside and giving her a hard time. She strips off her clothes, embarrasses her, and thoroughly enjoys her body through touching, kissing, and penetration. This is all part of a pregnancy guidance lesson.