My Classmates Are All Immortals

Long Yun travels through the acquisition system. Three years later... The strongest being in Tianling Continent was born! I thought I could be invincible, but I was easily defeated by an old man. This is not the weirdest thing. It hurts to shake hands with classmates! The elixir they refined is stronger than Long Yun's ninth-grade elixir! What else is there to do? Hit yourself with a tofu, I'll go! This tofu is made of iron! So hard! I feel like dying! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.