The world has turned into Hell's Game, why should I stay human?! - Chapter 13 Convergence

A 20 year old young chef, Kai, loved Supernatural things. He loved to read and know about myths and stories and longed for them.

One day, after closing a restaurant, a voice called out inside his head.

[Help me!]

What he didn’t know was his life would change when he met a girl, a Phoenix, who asked for his help. From her, he found out about his special constitution of being able to make a contract with Mythical Beasts.

With the power of Mythical Beasts in his hand, he would shake the hidden Supernatural World.

Accompany his journey, from being a simple cook to the Mythical Slayer accompanied by a few Mythical Beasts (Girls)!

It has been more than ten years since he was transported to another world. The protagonist Deris Fahrenheit, who has became a magician with special circumstances, was freely enjoying his life in this world. However, a girl appeared before him and asked him to make her his disciple. That girl seems to be a transported person――

It’s a story of him who becomes the girl’s teacher and trains her to achieve her revenge (?) in otherworld.

Burdened by the crushing debt of his parents, Lex never imagined a life beyond endless work and grief. But fate had other plans.One fateful day, an accident ends his mundane existence—only to thrust him into a world of fantasy. Reincarnated as a side character doomed to fail, Lex now inhabits the body of a so-called teacher—a fraud with no real skills, destined for disgrace.Standing at a crossroads, he faces a choice: follow the canon and flee from his inevitable downfall, or defy fate and carve his own path.Just as he considers running… a voice calls out.[Need some help?]Grasping the talent that his predecessor never realized he had, Adrian decided to defy his fate and become a true Runesmith.However, he never expected that once he would start on the path of becoming a Runesmith, he would start gaining so many connections.[Ding!][Cross-dimension group chat has been activated!][Hero of World Nebula: Old man, when can I get my sword done?][The untamed witch: When will you help me with my staff?][The obsessed one: Darling, when will you do me-I mean, when will you do something about my blades?]....what the heck is all this?°°°°°°°°°A/N:- Read the first few chapters, before deciding to drop it.English won't be perfect, but it will be readable.Additional tags: Cross-world group chat, possessive characters, sudden strength gain, overpowered MC, broken engagement.