A brown bear escaped from prison in the zoo. As soon as Suisui learned the news from her work group, her best friend called to warn her about the danger. She was cold all over - through the peephole, it was the brown bear imitating people knocking at the door. The zoo was about to close due to the incident of a brown bear mauling people. Now the knocking on the door turned into a banging on the door. The brown bear was obviously angry, and she could only guard the "indestructible" door and wait for rescue in panic.
