Rakuin no Monshou - Volume 7, Chapter 1: Mephius’ Melancholy

A river song, triggered a legend of the rivers and lakes.
Tian Zun’s life motto: “My sword is the truth.”
Shen Lang’s life motto: “To serve people with morality, those who are dissatisfied are dead.”

- Description from uukanshu (translated)

Mu Xuan traveled through the dangerous world of beastmasters. Fortunately, after successfully contracting beastmasters, he awakened two golden fingers one after another: blood extraction and fusion, and information panel!

So, Mu Xuan extracted his blood, designed the evolution route of the strongest beastmaster, and became the strongest beastmaster!

The world is at my feet, and the stars are not out of reach!

Ice Crystal Spirit → Ice Crystal Frost Dragon → Dyeing Embers Frost Dragon → Jie Embers Star Dragon!

Space Tanuki → Void Dragon Weasel → Leaping Sky Dragon Weasel → Heavenly God Dragon Weasel!

Heavenly Secret Illusory Butterfly…→…→…Nine Deaths Returns to the Reincarnation Butterfly!

Destroy the Demon Bear…

Holy Spirit Make…

Sun Golden Crow…

time old man…

- Description from novelbuddy

He swore that if he was given a second chance to live, he would live his life to the fullest.His life was full of misery but he was reincarnated in the body of the son of the strongest expert in the empire.He had the looks, wealth, and women. He was known as the “Handsome Playboy” and he didn't want to become a righteous protagonist.He awakened a system that can make him strong by making others feel the 7 sins towards him.He will collect many beauties and live to the peak of life.

The general of the demon world possessed the body of a third-rate small time celebrity. This was the story of him coming over, determined to make preparations for the demon world’s invasion of the human world, but accidentally got mixed in with the entertainment circle instead.