Language Quest https://irowiki.org/wiki/Language_Quest

Language Quest
Requirements
Base Level:	None
Item(s) (Consumed):	10 Oil Paper; 5 Slick Paper; 1 Feather of Birds; 1 Squid Ink
Item(s) (Not Consumed):	1 Mr. Smile or; 1 Goblin Mask or; 1 Mr. Scream or; 1 Welding Mask or; 1 Gas Mask or; 1 Opera Masque or; 1 Opera Phantom Mask; (equipped)
Rewards
Quest Reward(s):	Ability to speak with Umbala NPCs

Note: Domestic Dispute quest will not be available if this quest is done first.

Speak to the Village Leader Karkatan um_in39121 located inside a hut in north-west Umbala umbala68253. You must be wearing a mask (e.g. Mr. Smile).
He will ask you to bring him:
10 Oil Paper,

5 Slick Paper,

1 Feather of Birds,

1 Squid Ink.
Once you bring the items back, he will teach you the Utan language, and you will be able to talk to the rest of the NPCs in the village.

Language Quest
Requirements
Base Level:	None
Item(s) (Consumed):	10 Oil Paper 5 Slick Paper 1 Feather of Birds 1 Squid Ink
Item(s) (Not Consumed):	1 Mr. Smile or 1 Goblin Mask or 1 Mr. Scream or 1 Welding Mask or 1 Gas Mask or 1 Opera Masque or 1 Opera Phantom Mask (equipped)
Rewards
Quest Reward(s):	Ability to speak with Umbala NPCs