Testing against puppets

Hansen Campus,

Seeing someone slipped inside, the people who were arguing with security were stunned.

"Did you find out who that is?" The lean middle-aged man inquired of his colleague. They have been pressured by their superiors to collect some news. In particular, the news related hansen campus.

They were pissed off, witnessing someone went inside under their nose. 

"No, I couldn't see his face." His colleague replied. Hearing that they didn't argue anymore. Everyone saw that person wore a mask to cover his face. He also used hoodie to cover his head.

Who is this strange fella? Everyone puzzled. Next they decided to stay vigilant to not let anyone before they learn about that person's identity.

...

(From MC's Perspective)