亜樹 直 Agi Tadashi is a Japanese manga storywriter, novelist and screenwriter. His original name is Shin Kibayashi (樹林 伸 Kibayashi Shin). He was born in 1962 in Tokyo, and graduated from Tokyo Metropolitan Musashi Senior High School and Waseda University School of Economics & Political Science. The penname "Tadashi Agi" is shared with his sister. Under the name Yuma Ando, he received the 2003 Kodansha Manga Award for shōnen for writing Kunimitsu no Matsuri.
THE PSYCHIC MURDER AND THE SHADOWS OF THE PAST An impossible murder in a completely sealed room at the National Institute for the Development of Human Ability baffles Class Q. Whispers of psychokinesis and supernatural forces spread, casting doubt on logic and reason. As Kyuu and his friends dive into the investigation, they face a psychological game orchestrated by Thanatos, a cunning agent of the secretive Pluto organization. One trap after another threatens to derail their progress—but the team’s determination prevails. In the process, the mystery begins to unlock more than just the case itself, triggering the awakening of sealed memories within Ryu and Megumi—memories that may be the key to Pluto’s dark secrets and the destiny that binds them all.