After a rampant disappearance of young people, A notorious serial killer is terrorizing the augmented virtual reality industry by killing people in-game and in real life. That stopped when the killer mysteriously vanished and was sent into another world.

Gevanni is an odd highschooler raised in a dystopian future. He wants to become part of the world's top players in the most trending augmented virtual reality game, Herscheim. However, when he met a seemingly real female demon, he was transported into another world. But this came with a cost, all Cursed Grimoires users must hunt down each other—He is one of them.

With his newly-found power and driven by revenge, Gevanni will hunt the serial killer who murdered his sister in another world!
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Update:

(1) I made a (non-canon) manga based on this novel's prologue 2nd half and please read it. https://medibang.com/book/qs2008311200486150014573184/
(2) Usual few months break

Small Note: This is my first novel ever written (as pastime), and English is my second language so please bear with me (⁄ ⁄>⁄ ▽ ⁄<⁄ ⁄)

Warning: Please credit me if you decided to save my art and repost it somewhere.