Spring is in full bloom. For Saki Kashiwagi, who has just entered university, campus life is full of excitement. Joining a club with only men, her first part-time job, which she experiences without telling her parents. Her brand new diary is filled with the small incidents that happen each day.
Then one day, her precocious best friend, Kyoko Takano, teaches Saki about "the reality of men".
Secrets in a locked room that should never be seen.
Even after witnessing everything, Saki still couldn't believe it. And even in Saki's body, which fears sex, an uninhibited urge begins to stir. In bed late at night, her cheeks, which still retain a touch of innocence, turn red with embarrassment.
"This is wrong, doing something so lewd..."
The next day, Saki's heart trembles violently at the temptation of Ryo Kishimoto, a senior in her club.
Is it "love" or is it "desire"? Innocent Saki couldn't even tell the difference. On the way from "girl" to "woman", many obstacles stand in Saki's way.
As the poignant melody of "Träumerei" plays, will Saki be able to overcome her challenges and find her "true self"?