MTL - The Alternate World Is Too Dangerous: I Hide In Reality And Rule! - ~ Years ago

[TRIGGER WARNING: DARK THEMES, MATURE CONTENT.]In a world where humans, werewolves, vampires, fey, and other supernatural beings coexist, Isleen; an Omega who has been subject to multiple bullying and ridicule in the pack because of her parent's past, faces a challenging dilemma. She's dating Kylo but unexpectedly discovers that his strict father, Rhett, who is the pack’s Gamma, is her destined mate.Conflict arises as a war breaks out among the supernatural creatures and the death toll rises. Isleen struggles with her loyalty to her boyfriend, and the powerful pull she feels towards his father, due to the mate bond.——Imagine getting married at Eighteen to a woman old enough to be your mother– all because of your loyalty to the Moon Goddess?Welcome to Rhett’s reality. Rhett DarkWater is a man of principles but not without his share of secrets and hidden missions. After finding out who his second fated mate is, he battles with his devotion to the Moon Goddess, his loyalty to his son, and his duty as the Gamma who is supposed to protect the pack—not have his son’s girlfriend pinned beneath him in a corner with her clothes off.Unfortunately for Rhett and Isleen, the mate bond knows no morality – it attacks, and when it does, two hearts must become one.——I and Gamma Rhett just kissed again.He knelt before me, his hand reaching out to touch me, but I flinched away. “Isleen,” he muttered.“This is wrong,” I cried. “We can't do this. It's forbidden. W-what about Kylo?”He stared at me, his eyes burning with a passion that frightened me to the core. Yet, it left tingling sensational effects all over my body. “Don't fight it, Isleen. We are mates. This is what we're meant for.”

Once I’ve become Immortal, then my attempt to conquer the world shall begin.

An ordinary sect cultivator, with the help of the immortal mansion, gradually grew up in the cruel world of immortality, and his mind and body transformed together.

Mortal flow, partial dark wind.

- Description from novelbuddy

A man is reborn into the world of Avatar: The Last Air Bender as a waterbender from Katara's tribe. Best of all, he was the same age as her, and he had a system with him to help.He knows the future and a system that lets him continuously get stronger by completing quests or long-term missions, as well as giving him the ability to copy abilities from others for himself. He will become invincible in the world of Avatar, even more so than the Avatar himself.