After living a boring and regretful life on Earth, Diablo was reincarnated into another world where various races lived besides Humans. Even Swords, Magic, and Monsters were present in that world. However, instead of being reincarnated as a human, Diablo was reincarnated as a Spirit who lived in a separate dimension from other beings called the Spirit Realm. Knowing that Spirits could only manifest in the Physical Realm through contracts with other Races living there, Diablo was forced to stay in the Spirit Realm and wait for someone to form a contract with him. While waiting and hoping for the contract he would form, Diablo spent his time studying and understanding the powers he possessed as a Spirit in order to grow stronger before the day he would enter the Physical Realm.

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This is my first novel, so there may be some shortcomings in both story and character development. Also, due to my native language, English is not my first language, so there may be some translation errors throughout the story. I apologize and ask for your patience from the beginning. Please support my work so I can continue to create!!!
Note: This story is my own original work, with no AI intervention in its creation except for translating the story into English!!!

Author's Note: This chapter is important because it contains an introduction to terms that will be used throughout the story. Please take a moment to read this chapter first!!!


A world 2-3 times the size of Earth, inhabited by various races. These include Humans (Inhumans), Elves, Dwarves, Beastkin, Demons, Vampires, Dark Elves, and Dragons, along with all kinds of other monsters. The layer that houses these various races is called the Physical Realm. Meanwhile, the inverse layer of the Physical Realm, with a different dimension but mirroring the Physical Realm itself, is the Spirit Realm, which houses various Spirits that can be contracted by all races of the Physical Realm.


A man from Earth who was reincarnated into Nihilia as a Spirit. He stands 175 cm tall, has pale white skin, night sky hair with white specks like stars, golden eyes, a black robe with gold embroidery forming a clockwork pattern, and large black fairy wings studded with stardust with thin lines resembling golden veins. His wings sway gently and soothingly like the current of a river.


A woman who was stripped of her noble status after her family banished her and severed ties with her due to her inability to contract a Spirit. She stands 165 cm tall, has milky white skin, obsidian black hair, and ocean blue eyes.


Races and Social Classifications in the Physical Realm:


+ Good Society: (A racial group capable of forming contracts with the Seven Noble Spirits).


- Inhumans (Essentially human, but capable of living up to 200-300 years).


+ Evil Society: (A racial group capable of forming contracts with the Seven Wicked Spirits).


= 7 Noble Spirits: (Can only be contracted by Good Society).


= 7 Wicked Spirits: (Can only be contracted by Evil Society).


= 3 Impartial Spirits: (Only appears after Diablo has lived in the Spirit Realm for 1000 years/1000 years before Diablo formed a contract with Jessica and can be contracted by either the Good Society or the Evil Society because the Spirits from this group are Neutral Spirits).


Tier 10 - Ancestor (Only 1 for each Attribute)


Chapter 0: Introduction of Terms (Important)