MTL - Natural Disaster Apocalypse - Chapter 18

The world that nurtured the civilization which reached the pinnacle of magic was on the verge of destruction.
The last survivor transmigrated to the past, when the magic civilization started growing, as countless mages were still fumbling their ways through the thorny paths of magic knowledge.
He, who came from the end of the magic era, aim to reach the pinnacle of magic.

- Description from Novelupdates

Li Zhizhi was taken back to the capital at the age of fifteen to recognize her ancestral roots. As the true eldest daughter of the Li family, she should have been cherished. However, everyone preferred Li Suwan, who was knowledgeable, polite, and clever. As for Li Zhizhi, she grew up in a remote and impoverished village, ignorant of the ways of the world, and her name even carried a sense of disdain.

A mecha otaku is reincarnated into another world as Ernesti Echevalier (Eru). In this world there exist huge humanoid weapons known as Silhouette Knight. Dreaming of piloting those robots, Eru, with childhood friends, Archid Walter and Adeltrud Walter: together they will aim to become a Knight Runner, pilot of Silhoutte Knight.

Sword Saint Ji Yuan has just breakthrough to the lofty seventh realm saint level after a period of 100 years. When he returns to his celestial clan where he was once the Sword Saint, he has found out that many things have changed.

The worst thing had happened to him; he had lost his beautiful beard and in the Desolate Celestial Fraternity, a beardless cultivator is to be scorned and despised!

This is actually a xianxia romance story about an unromantic cultivator who likes his beard and the romantic leading maidens who all hates his beard.

There are a total of seven celestial levels in order to cultivate as a celestial cultivator; Practitioner, Master Practitioner, Enlighten Celestial, Immortal Celestial, Golden Celestial, Golden Supremacy and Sacred Saint.