An Yi is an ordinary high school student, but one day's experience makes him no longer ordinary.
"Hello? Are you bullying my sister?" An Yi said looking at the person in front of him.
"It's me, and you're his brother?" The man said nonchalantly.
"Do you want to die?" An Yi pointed at the person in front of him and asked.
"Hahahaha..." The man smiled and passed away.
An Yi: "?"
…
"Yes, in fact, there are people with supernatural powers in this world, so An Yi, I hope you will join us."
"Of course, I'll join!"