Minister Cho's Estate (mission)/Zaishen Quest

Summary

 * Neutralize the danger to Minister Cho.
 * *BONUS* Complete the mission in under 20 minutes.
 * *BONUS* Complete the mission in Hard Mode.

Dialogue
"A strange disease has beset Minister Cho's Estate. Master Togo requests able-bodied heroes to help investigate and neutralize the danger."
 * Accept: I can do that!
 * Reject: No, I'm way too busy today.