The Sword Deity in Tokyo - Chapter 197: Natsuna Yamanaka

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

Utsuro no Hako to Zero no Maria, or The Empty Box and The Zeroth Maria, tells the sinister story of Kazuki Hoshino, who is almost madly attached to his everyday life, and his antagonist Aya Otonashi, who suddenly transfers into his class—for the 13,118th time. She majestically announces to “break” him, without paying heed to anyone else around them.

When people awaken, their class gets ranked.F means nothing.SS means everything.Nobody talks about SSS ranks, because they aren’t real. Well, they weren’t real until he became one.Lucen Ivara was fine with staying average. Keep his head down, take low-tier jobs, eat something hot once in a while. That was the plan.Then his system came online.It didn’t follow the rules.There were no guides. It seemed limitless. There weren’t any safety rails he could cling into.Just a blank interface and a quiet message floating in front of him.[You are the first.]Now Lucen is crafting spells no one’s seen before, hiding a class that could get him killed, and trying to scrape by in a city where dungeon breaks, guild politics, and hidden power plays are part of daily life.He’s not looking to be a hero.But with power like this, staying invisible might be the hardest thing to do..

I Became Hades, the God of the Underworld from Greek and Roman Mythology