Trinity Seven The Novel: Eternity Library & Alchemic Girl is the second volume of the Trinity Seven The Novel series written by Kenji Saitō and illustrated by Nao Akinari. The volume was released in Japan by Fujimi Shobo on December 29, 2014.
Magic is the contradiction against the Logic of the World, allowing one to perform impossible actions that defy the rules of science. As a student of magic, Arata Kasuga, is still considered a special case amongst the magical communities. Regardless, magic is divided into a system of seven Archives, based on the Seven Deadly Sins, where the most talented mage of each form the group known as the Trinity Seven. Furthermore, if the one deemed as the Demon Lord is able to meet them, the world will be ruined.