Applicant Manager, What Does It Mean That the Abnormality Has Escaped?

On the night of my 20th birthday, an email popped up on the screen on time—— Congratulations, you have passed the company's job application. We are all looking forward to your arrival, supervisor... On your first day at the company, a giant skull gave you a hair accessory of thorns - your work ability improved. On the second day after arriving at the company, a strange-looking "cow" suddenly appeared again - your mental and physical abilities have improved. On the third day after arriving at the company, a rapid siren rang through the corridor. Chen Mo looked in front of him, and a huge blood-red mouth swallowed everything in front of him...