told she was on the bubble for the championship, track athlete sora signed up for an intensive training camp. upon arriving at the camp, she found that only she and her coach were present. taking advantage of the situation, the coach began to grope sora's body as she performed air chair exercises. seeing that sora couldn't resist, the coach pressed the tip of his penis against her vagina, claiming it was to help her endure the air chair exercise. sora desperately tried to hold back, but eventually reached her physical limit and was slowly penetrated inch by inch.