The Backbender (Avatar: The Last Airbender) - Chapter 33 - : Goth Mommy.

Bibi Dong never dreamed that she would come back from rebirth in the form of someone else’s martial spirit.

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Finished three copies of the high-quality Douluo with an average order of 5,000, “Douluo from the beginning of blowing up the soul ring”, “I am in Douluo, I ate the Blue Silver Emperor”, “Douluo: My Martial Soul” is a simulator”.

- Description from novelbuddy

Sam crosses to a new planet that is completely magical. He discovers that humans can have superpowers, and monsters also inhabit the planet. Humans continuously fight these monsters to protect themselves and their world.Unfortunately, Sam, who just arrived on the planet, lacks the potential to become powerful and doesn't possess any shortcuts to gain strength quickly. As a result, he resigns himself to living an average life and tries to avoid danger.However, everything changes when he graduates from the academy. He receives an invitation from his former academy to become a teacher, and simultaneously, he awakens the Teacher system.Now, on this perilous planet, if he desires to become powerful, he must accept students and empower them. Only when his students become strong will he gain strength himself. Join his journey to become the greatest teacher.

Collapsed without warning, and upon awakening, he found himself back in his childhood.He thought it was a blessing from above, but unexpectedly, tumultuous changes ensued, shrouded in mystery...

Xin Yun, a sarcastic young man, traveled to an unknown world by chance, but lost his chance to become the strongest because of his obsession with women... or sex. In a collision of the powers of nine powerful men, an incredible thing happened. Xin Yun was reborn back to the time when he traveled to the Isekai world. A fantasy journey is about to begin... [The comic adapted from this novel is popular all over the world]