Death March kara Hajimaru Isekai Kyusoukyoku (WN) - Book 17 - 17-20. Demon God

Due to his own carelessness, Duanmu Huai finds himself transported into the world of the game “Star Ocean Online.” Starting from a humble core capsule, Duanmu Huai ventures across the starry sea to countless worlds. He awakens powers that have long been dormant, confronts threats lurking in the depths of the universe, and sets his sights on dominating the galaxy!

Otaku Tang Yi traversal obtains a systematic counterattack.

waste? You can still find your teeth everywhere.

Easily relax the artifact, simply become a master.

Daguai upgrade, killing also upgrade.

Crush the heavens and the world to achieve the invincible supremacy.

genius? In Tang Yi’s eyes, it was just a joke, not as good as a pet dog in the system.

- Description from Uukanshu

An orphaned boy with dreams of making it big through being a blacksmith is given a once in a lifetime chance to succeed when he's taken in by an odd pair - Eggor and Ella. While former teaches him the arts of craft, the latter teaches him the mysticism of cultivation, granting him two paths to tread in this life.

“Why don’t they think about training to grow stronger during a time when just breathing makes you stronger?”After possessing someone, he decided to silently train to become a great mage.“Did it appear?”[You have acquired the All-Attribute Body (Fire, Water, Wind, Earth, Wood, Electricity, Light, Darkness).][You have acquired the highest-grade elixir, Dragon’s Essence (SSS).]……Let’s take a slightly different path to growth from others.