Counterattack System appeared when I'm already At The Mahayana Realm - Chapter 769 - 768: The 8 Rules of Creation

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)!

When you wake up, you suddenly find yourself naked, locked in an iron cage, and next to you a pair of eyes are closely staring at you, where will you cover up first? Up top or down below? Luo Qingyu didn’t cover up, she smiled charmingly, and knocked him out. Crossing? It doesn’t matter, she is a top agent, in a different era she can still mix in the wind and water. Unspoiled daughter? Oh, she’ll let the old man regret until his intestines are black…….

- Description from Novelupdates

Su Yuan transmigrated to Teyvat.At the same time, another strange and eerie force descended upon this world.The entire Teyvat was affected to varying degrees.Furina endured five hundred years of loneliness in order to save Fontaine.But just before the dawn of victory, she succumbed to madness under the influence of the eerie force...“No one understands my loneliness... No one can comprehend my fear... No one can listen to my pain...”“Why must I give so selflessly... Do the people of Fontaine truly deserve my sacrifice?”