A retired samurai (主) is entrusted with saving his home from intelligent, language-devouring "Akuma" alongside an eccentric fox (人) freed from a cursed abode and an astute princess (公) with her own ambitions.

Shujinkou is a dungeon-crawling JRPG that offers a unique opportunity to learn Japanese as you play. It features thousands of Japanese words, phrases, kana, kanji, and grammar elements that players can master through focus, diligence, and consistency. The language content spans from JLPT N5 to N1 standards, accommodating learners at any stage.

However, learning Japanese is entirely optional. For those more interested in the adventure, Shujinkou delivers a rich JRPG experience. Players can immerse themselves in hundreds of skills, items, deep forging, cooking, fishing, quests, achievements, records to break, and minigames.