I Stomped on a Bug, and the System Said I Slaughtered a Dragon?

“Ding! Congratulations on slaying the Beast King. Reward: tenfold amplification. You have obtained an Undying Body and a sixty-year cultivation base!”
Qin Yang looked at the big c*ckroach he had just crushed underfoot, and his face was completely shocked.
“Alert! A Beast Sovereign-class star beast has been detected. Host, please flee immediately or you will die a horrible death!”
Qin Yang looked at the little purple spider in front of him, and a huge question mark appeared over his head. What do you mean, “Beast Sovereign”?
Inside the library, Qin Yang was reading when a little girl walked in.
“Ding! Empress aura detected. Host, please kneel and beg for her to take you as an apprentice. Your future is boundless!”
Qin Yang looked at the girl in front of him, who was looking very earnestly at the book she held. His expression stiffened.
This System must be sick!