Songhai Prison’s Mahjong Squad

A lot of medical personnel carrying briefcases came down from the ambulances. There were fully sixty people. The vaccinations proceeded in a thorough and methodical way. These medical personnel also wore uniforms designated by Huaxiu Alliance, the Alliance logo printed on the white coats.

It wasn't just the students, but everyone had to be vaccinated, including the team of experts who would be entering the remains as well as the teachers leading the students.

This was because an accident had befallen an expert in Beast King's Remains previously. Although he came out of it alive in the end, he wasn't treated in time, and the toxin invaded his spine, directly paralyzing his lower half.

Thus, an antibody vaccination had become a prerequisite for entering Devil Valley.

...

Not long after the ambulances showed up, Odd Zhuo, Director of the General Administration of 100 Schools in Songhai city, also arrived on the scene.