Tarti:
It's not much, it should be easy.
See Ruine next to you? Ask Ruine to teleport you to a Dimensional Rift or Dimensional Crack. I've already told her to send you to wherever you want.
It's said that Dimensional Rifts and Cracks were discovered after some problem, occurred in the dimension. They asked me to figure out what exactly happened there. While sealing with monsters in the Dimensional Rift or Dimensional Crack, you can find Dimensional Traces. Gather them for me. Not so difficult for you, right?