Yukari Kobayakawa, an accomplished author at the age of 17, writes with amazingly accurate details about historical Japan. As it turns out, he has the ability to slip into his past life in the Edo period--as a beautiful, renowned courtesan named Yumurasaki!

Yukari, Satomi and Mahoro are all influenced by their past life personalities and begin to lose control over their present-day behavior. While Mahoro wonders about Yukari's true feelings for her, Yukari realizes exactly who Mahoro and Satomi were in the past! Meanwhile, Yukari's journeys to the old days are becoming more and more dangerous...