The Root of the Problem

Walkthrough

 * Talk to Chumimi in Heavens Tower to get a cutscene.
 * Then talk to Koru-Moru in Windurst Walls and trade him a Silk Cloth.
 * Go back to Chumimi for another cutscene. You will receive a Sluice Surveyer Mark I (key item), which is a magic doll.
 * Go into Toraimarai Canal via the Three Mage Gate (or through Windurst Walls if you have the Rhinostery Certificate) and find the three ???.
 * The first is at H-7, fairly close to entrance. Check it and get a cutscene where the doll absorbs the magic.
 * The second is at I-9. Once you get there check it once for the first cutscene, the doll will say that he needs you to use your BLM powers and the cutscene will end.  Use Manafont and check it again, and watch another cutscene.
 * To get the third ??? you will need to spawn and kill a NM Magic Sludge. The NM is like all other elementals in that it's highly resistant to physical attacks, but is also resistant to magic. The fight is easy just takes some time due to most damage sources doing little. Use some Poison Potions if you want to reduce the danger of the Sleepga it can cast. Recommend Monks with Chi Blast and anyone who can use a Sword for Spirits Within to speed up this process.
 * Head to J-8 and click on the ??? and defeat the Magic Sludge. Click on the ??? again for a final cutscene which tells you to return to Windurst. You DO have to be BLM to pop the NM.
 * Head back to Chumimi in Heavens Tower for the final cutscene and your reward.
 * Optional:
 * Talk to Kupipi in Heavens Tower, she is near the Star Sybil door, and recieve an Earthen Charm (Key Item).
 * Head back to Horutoto and past the Three Mage Gate to find the Gate of Earth. When you click on the Gate of Earth, you will get a cutscene.  You will go inside the gate and see a wilted tree.  Then the three Tarutaru walk in and talk about it, Shantotto and the other complain then leave, Yoran-Oran stays and says they never understand.

Game Description
Client: Chumimi (Star tree farm, Heavens Tower) Summary:The cause of the star trees' poor growth seems to lie in the Toraimarai Canal. First, bring some silk cloth to Professor Koru-Moru so he can improve his magic doll. Then take the magic doll into the Toraimarai Canal to carry out an inspection.