Seven years ago, Yuto's older sister vanished through a mysterious door, leaving him with only a necklace. Now he has once again seen that same door, and watched two mysterious girls (Saya and Hina) go throu...

Kazehaya Kamito has been summoned to the girl's school Alessia Spiritual Academy, which teaches noble young ladies how to make contracts with powerful spirits. On his way, he has the misfortune of catching s...

The valuable treasure, the “Encore” which was left by the legendary Brave Hero Elline, has the recording of the end of the world and the reincarnation of the world. The countries and parties all over the...