C408 Chemical element?

When Lin Hao woke up, his mind was in a complete mess. He silently stared at the ceiling above him as he felt a heart-wrenching pain.

His four limbs were just as he had imagined. He couldn't move them at all. Moreover, the slightest movement would cause that kind of pain to corrode his mind without restraint. It was as if his arm had been forcefully torn off.

Looking around