From LSWiki

Class: Language Skills
Attribute: Intellect
Pedagogy: Procedural
Practitioner Term: Speaker of Kyotsugo
Hidden Skill
Language Sound: Rapid
Language Difficulty: Hard
Language Speed: Fast

The ability to speak and comprehend Kyotsugo, a language spoken mainly among
the Edo people of Kaishima and Hanoma.

Notes

Trainers

Hanoma: Olaris Wanders
Leah's Hill: Arvan the Keeper
Miyu's House: Yui
Association:
Crafty Linguists: Janid Suzak Wanders
Guild:
Aisenshi: Musashi
Quest: