The Grumpy Knight and the Fluffy Princess: Learn Polite Japanese through a Cozy Fantasy!

A Maid, A Wizard, and Polite Speech: Discover Subtle Japanese in Fantasy Life

Royal Love and Language: Explore Japanese Through Nina’s Palace Fantasy

A Giant Cat Butler?! Learn Natural Japanese Through a Heartwarming One-Human-One-Cat Life

“Polite but Petty?! Learn Sarcastic Keigo with a Useless Healer in This Isekai Comedy”

Everyday Japanese with a Dragon Girl: Learn Casual High School Conversation!

Fluff, Form, and Formality: A Romantic Tale with Polite Japanese