Quantum Devil Saga: Avatar Tuner, Vol. 1

Quantum Devil Saga: Avatar Tuner, Vol. 1 (クォンタムデビルサーガ　アバタールチューナー I, Kuontamu Debiru Sāga Abatāru Chūnā I, Quantum Devil Saga, Avatar Tuner I) is a 2011 science fiction novel by Japanese author Yu Godai, the first in a series of five installments. It is the author's reimagined take on the story of the Digital Devil Saga series of role-playing games (for which she was also the original story creator, she had to leave halfway due to health reasons). While the original games were set in the world of the Megami Tensei video games, the novel series does not take place in the Megami Tensei continuity.