That's it. Please complete all the tasks listed on the scroll! Stan pulls out a scroll and hands it to you.
Please go to the Belcar Plateau and defeat the Entangled Servants and Soulless Servants in the Meteorite Crater. When you're finished, head back to the Belcar Outpost and find the Mysterious Assassin.
These preparations will allow you to earn the power of an Assassin!