Ai Yamaguchi

Kiyoha rises from the lowly courtesan ranks to the high class position of Oiran in the steamy red-light district of Yoshiwara. She is determined to stand on her own two feet and live life as she pleased.

Teacher Akira Suzuki breaks away from long-held customs and norms at his school. He tries hard to have the ideal classroom by using his own "Suzuki method". The new semester begins. His homeroom 2-A class is about to have a student council election and preparations for a school festival. A man then takes a female student hostage...

Kae Horii moves into her new flat in an undisclosed area of Kyoto. While unpacking her belongings, she discovers a hidden compartment behind a inconspicuous mirror. In that compartment, Kae finds a notebook, that turns out to be a diary belonging to the previous tenant. Later that evening Kae starts to read the diary. The writer of the diary is Ibuki Mano, a young lady about to embark on her first year as an elementary school teacher. Ibuki is also in love with a man named Takashi, who may or may not hold similar feelings for Ibuki.