MTL - Supreme Demon - Chapter 4 Taichi fresh water

On a normal boring day, a message appears, inviting him to a Tutorial.

Chests brimming with treasure and chests squeezing him tight—Azrael wants them all!Chosen by the Third Lord as a candidate to inherit her throne, Azrael awakens his second skill: Infinite Dungeons (SSS)—the power to enter any dungeon he wants. Now he dives into deadly dungeons where chests lurk around every corner… and the “rewards” are just as dangerous as the monsters.

Ji Huan’s parents both died in a traffic accident.
Unexpectedly, his older sister also meets the same fate.
Yet everything starts when he says “goodbye” for the last time.

Hunting monsters? Genetic comparison?
Ji Huan flees with his older sister’s posthumous child to his hometown, Bade Town.
The three Grandpa, grandson, and nephew all live interdependent days.
However, inside the swaddling clothes is not a human baby,
But a monster…

Black egg body, white ring eyes, red mouth.
A child, ah! Doesn’t he have two eyes and a mouth! Resembling an egg, he is Ji Huan’s cute nephew!

Vermilion tiled wall, white lotus pond, convalescent courtyard.
This entirely neatly handsome and elegant young man: Ah Jin.
However, he told Ji Huan about the secrets of the monsters and discreetly taught him.
Bade Town is also slowly being covered in monsters…

Or, the record of a small countryside monster’s growth.

- Description from Novelupdates