The Backbender (Avatar: The Last Airbender) - Chapter 37 - : Power of a God!

Kurono Maou is a high school student who is sensitive of his sharp eyes and bad expression. No girlfriend but gifted with friends in his own way, he had been living a peaceful life.

Your meridians cannot be cultivated? It’s ok! There are Crazy Leveling System, do missions, kill monsters, swallow other people’s spiritual power, make pills or forge weapon, participate in big battle, you can gain experience!

Lucian Bowcott only wanted a quiet life. He met up with old friends, made a wish, and died after one drink.Now, he awakens inside a coffin—summoned by the Half-Dead Queen of Atraeum and surrounded by restless souls.Armed with the Death Grimoire, Lucian must embalm corpses, repair brittle bones, and help the dead find peace… before something ancient finds him.As his powers grow, so do the whispers in the dark. If he wants to survive, Lucian must unravel the Queen’s grief, discover why a mortician hasn’t been summoned in over a century, and confront the entities haunting his every step.A/N: It doesn't deal with dungeons, Lucian's system is a magical book, and he slowly unlocks powers to help him with his next assignment. He travels to different places around Atraeum, and in the future, another kingdom.This is a character-driven gothic isekai about an introvert learning that sometimes, peace is more than just embalming a body and preparing it for a funeral. He's more of an undead therapist now

A tree of 10,000 flowers, the world is the door.
The spells change a lot, but the hearts of the people are unchanged.

- Description from Uukanshu translation