The Ninth Sister is a Prodigious Beast Master - Chapter 994: Great Technique Tribulation!

Lu Heng traversed to a parallel world and acquired the Celestial Destiny System, launching online live streams.A certain platform's outdoor streamer: “Could you help name my unborn child?”“My friend, you're wearing a green hat. The child has another father!”“Master, I have a goddess with whom I've had an online relationship for three years. How is this romance going to turn out?”“Your goddess is actually the old woman next door!”

A ritual gone wrong gave him the world's deadliest Class—now all he wants is blood.Zeth stole the most powerful ritual magic in the world from a mad cultist. A Class that's fueled by the blood of his enemies and human sacrifice. One that's illegal to use, punishable by gruesome death. And now that he has it, he's faced with a choice: hide away for the rest of his life from those who would hunt him down, or embrace the power, becoming the hunter to get revenge on the murderer that stole his friends' lives.For Zeth, that's no choice at all.His enemies have to die. And he plans to use every drop of blood, eldritch ritual, and demonic summoning he can to kill them.

I became the childhood friend of the protagonist in a novel. The childhood friend who died from taking drugs.