Eternal Melody - Chapter 6 - Canary Yellow

In his past incarnation, Lu Xuan was the youngest Celestial Lord that the universe has ever seen!
An accidental rebirth brought him back to a thousand years before, where the Earth had just begun its spiritual reawakening. When he stepped onto the way of cultivation for a second time, he swore to rewrite all injustices suffered in his past life, and defeat all enemies that dare stand in his way!
Let invincibility be his cultivation and the path he treads. In this life, it is his destiny to be invincible!

You have unlocked the skill Money is Power (MAX)In an unknown land, where towering beasts, malevolent demons, and capricious gods reign supreme, a young man awakens in chains, his past erased from memory. He somehow knows that his name is Raiden, and he finds himself a slave for a ruthless group of bandits that buy war orphans.Raiden's days blur into a haze of toil and torment, his mind a void looking for answers. But beneath his exterior lies a dormant power, a skill that, when unlocked, promises to reshape his fate: Money is Power (MAX). This unique ability allows him to manipulate wealth in many ways, transforming it into strength, influence, and even magical prowess.As Raiden navigates the dangerous world, he discovers the true extent of his power. Gold becomes his sword and shield, enabling him to do pretty much everything he wants. With every coin he acquires, his influence grows, challenging the gods themselves and unsettling the very fabric of the world.

This is a world where humans, demons and mysterious beasts coexist.

Humans cultivate mysterious qi. Demons cultivate corporeal bodies. Mysterious beasts cultivate soul perception.

A legend says that in the middle of an endless rainforest, there are extremely powerful existences; they are called demon kings.

Some demon kings have a tyrannical corporeal body, some are experts in illusions.
Some demon kings are proficient in magic, some can even move mountains.
Some demon kings are able to sense things thousands of miles away.

These demon kings rarely appear in the human world. Even if they emerge in the human world, they would reincarnate in human form; assimilating with mankind while seeking to breakthrough realms…

- Description from Novelupdates

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.