Chihaya, the Girl of the Flower District

In the nighttime entertainment district known as Okagai, people come seeking to forget the burdens of daily life and indulge in fleeting pleasures. Gambling, drinking, smoking, and the red‑light establishments all coexist here. Wealth brings light, poverty brings darkness, and this chaotic city embraces both.
One day, a shabby young girl named Chihaya is drawn into this world. What awaits her—ruin or something else?
The protagonist is a man working at the largest pleasure house, Yoshiwara Kacho, tasked with training newcomers. He has guided many apprentices before, but when introduced to Chihaya, whose emotions are faint and whose knowledge of the world is limited, he finds himself gradually opening his own heart while training her to become an oiran (a high‑ranking courtesan in Edo‑period Japan)—not only teaching the intimate skills required of her role but also the basics of ordinary life and play.​