Summon the Shadow Legion at the start and create the Underworld Palace!

[Invincible and exhilarating story] + [System-based] + [Decisive and ruthless] + [Behind-the-scenes villain] + [Shadow Legion] + [Not a saintly figure]
Chen Yu unexpectedly awakens his innate wisdom and learns that he is in a fantasy world.
He thought he could live a quiet life as a rich kid, but he never expected his family to suffer a devastating disaster.
Fortunately, the system was activated in time!
As long as you kill others, you can plunder their life points and extract all the items in the heavens!
Congratulations! You have successfully drawn the Shadow Legion Summoning Right (Purple)!
Congratulations! You have successfully drawn the following item: Divine Elephant Suppressing Prison Power (Colorful)!
Congratulations! You have successfully drawn the following item: Supreme Emperor Weapon * Devouring Demon Jar (Black)!
……
At the start, you gain the right to summon the Shadow Legion, allowing you to summon the Shadow Legion infinitely to fight, and create an assassination organization: Yama's Palace!
If the King of Hell decrees your death at midnight, who can keep you alive until dawn?
Whether the opponent is an ancient emperor, an immortal supreme being from a forbidden zone, or a reincarnated true immortal...
They will all die if they pay a sufficient price!
……
Many years later.
Looking at the myriad realms where powerful beings were fading away, Chen Yu couldn't help but fall into deep thought.
"or……"
"Should we wait until there are more chives before harvesting them?"