Koko wa Ore ni Makasete Saki ni Ike to Itte kara 10 Nen ga Tattara Densetsu ni Natteita - Chapter 220 - Gathering Materials

Violet skies, a world undergoing massive changes, a deficient moon, interlinking voids…
When the world experienced a cataclysmic event,the majority of living things ceased to exist. Although humanity survived by hiding in the last safe zones, humans had to face mutated dire beasts and colossal source beasts that could break through the space barrier and enter the earth at any second.
Luo Yunyang, a young man who grew up in those calamitous times, obtained an attribute regulator and set out to walk the path of supremacy!

- Description from novelupdates

What is a Daoist Master? One that is imageless in ten directions and vanishes in the six paths; unrestrained by the three realms and the five elements.

Because of an accident, Chen Fan obtained the power to possess an electric eel!

5 years after the world changed, the final boss appeared.