Kokoa, who attends a cram school in Tokyo, is whispered sexual words by her instructor one day. Kokoa, who is curious about the unfamiliar words, looks them up in a dictionary at home, but when she learns their meaning, her pussy gets hot and she stimulates her clit with her finger. Her breasts swell and her vagina gets soaked from the pleasure she has never experienced before, but Kokoa, who wants to learn the meaning of pleasure from her instructor, writhes with pleasure at her first kiss and first insertion from her instructor, and gets excited. Kokoa's delicate body jumps at the intense piston thrusting deep into her vagina, and she is captured by sexual stimulation...