Speak to Shantotto who will ask you a question. Choose the second option (you ask her if you're worthy). Shantotto will then ask you another question, choose the second option again (along the lines of "Whatchu talking about Shantotto!").
Shantotto will bestow you with the title: Total Loser.
Shantotto will also tell you to go to Beaucedine Glacier and find Minister Rukususu and her party. You will also now have the quest in your quest log.
Head out to Beaucedine Glacier and pass the first tower. At the fork in the road (H-9), head east. At (I-8) take the slope downward and head north to the tower at (I-7) and Torino-Samarino.
Head back outside to the glacier and head south to (I-9) and head down another slope. Head east to (J-9) then head north, past the tower and a frozen pond to (J-6) where you will need to head down another slope that leads to an open field. Head north and you'll see Fei'Yin.
Once inside Fei'Yin, head to (F-6) on the map on the right. Open the first cermet door on your right and you'll see a cutscene with Rukususu.
Cast Warp on yourself, or use an item with an equivalent effect, to leave Fei'Yin.
Return to Windurst Walls and talk to Shantotto. After a cutscene, she'll reward you with the Warp II scroll and the title: Doctor Shantotto's Flavor of the Month.
Shantotto wants you to go ask the Rhinostery's Rukususu about how her magic is performing. Rukususu's party is said to be at the tower ruins on the Beaucedine Glacier.