Kana and Akari are going on a trip together for the first time to celebrate their graduation. Akari starts to become conscious of Kana when they take a bath together. Akari can't forget what happened in the bath and secretly masturbates next to Kana as she sleeps... Kana gives her masturbation instructions, saying "I'll teach you," and they develop into lesbians... Kana and Akari are shy about their first kiss, but they get hooked.