Quest #078 Oh The Indignity - Swinedimples Academy
Quest Requirements: Defeat a Liquid Metal Slime with Fandango while wearing Bunny Ears & Bunny Tail
Quest Pre-Requirements: 100 Skill Points in the Fan Skill Tree and Side Quest #077 Complete
Reward: Further Fanmanship and Hustle Dance Ability
This quest is given to you by Fanny, a lady standing in the hallway on the eastern side of Swinedimples Academy L2. In order to accept this quest from Fanny you'll first need to complete Side Quest #077 as well as have 100 Skill Points spent in the Fan Skill Tree.
For this quest you will need to first purchase two items; Bunny Tail from the armor shop in Zere and Bunny Ears from the secret armor shop in Dourbridge. The Bunny Ears can also be made with Alchemy but it's easier to get them from the Dourbridge Secret Armor Shop.
The Liquid Metal Slime enemy that you need for this quest can be found in two places, the first of which is the Bowhole dungeon and the second is a place called Slime Hill which is a location you can only access with the Starflight Express near Angel Falls. For more information on how to get to Slime Hill check out Side Quest #055; it requires you to visit the boy in the cave right here and I go into more detail about how to get here.
If you'd like to try out Slime Hill, it's an area with a ton of regular slime enemies and an occasional metal slime enemy. Any type of metal slime enemy can spawn on this hill and a lot of the hill is covered in forest so they can be difficult to see too.
Wherever you decide to go, equip the two bunny items and use the Fandango ability to defeat the Liquid Metal Slime. For quests like these I would highly recommend having at least two or even three characters in your party that can use the Fandango ability.
The reason for this is all of your attacks are going to be hitting for 1 against the Liquid Metal Slime and it's hard enough to defeat it before it runs let alone with a specific ability. Therefore to increase your chances, multiple characters attacking with the same ability will make a huge difference.