Outside the SSA, General's Residence Building, Meeting Hall.
"There are only three ways to kill a hydra properly; if not killed properly, it would regenerate to full health if given enough time, thus making your mission a failure…"
"Thus, if the students want to finish this mission successfully, they have to at least do one of the following things to kill that hydra…."
The first method to kill a hydra is by cutting or destroying all its five heads together, which is a very difficult task.
A single person may find it impossible, but since there are many students to fight it, this method may actually seem the most feasible, but this is the most dangerous one.
Any one individual mistake can result in the failure of all the attacking parties, and it may even lead to fatal injuries.
