Yukarism Series by Chika Shiomi

Yukari Kobayakawa, an accomplished author at the age of 17, writes with amazingly accurate details about historical Japan. It turns out he has the ability to travel back in time...to his past life as a renowned courtesan in the Edo period! As he goes back and forth between the past and present, he unravels the karmic relationship he has with his beautiful classmate Mahoro Tachibana...

Satomi Katsuhiko enters Yukari’s life when he needs a new housekeeper, but Yukari’s devoted fan Mahoro Tachibana instantly hates him! The three’s karmic relationship with each other begins to unravel, and things take an unexpected turn when the past seeps into the present!

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…

Seemingly afflicted by Yumurasaki’s fatal illness of the past, Yukari begins to get very sick in the present day… Meanwhile, Mahoro vows to kill Satomi before he can kill Yukari (as she believes he had killed Yumurasaki in the past)! Are these three fated to repeat their tragic connection?