Japanese grammar that finally makes sense.
A clear logic-first path for learners.
🎯 How to use this site
- 🎥 YouTube — understand the "why" in 3 minutes
- 📖 Articles — examples, comparisons, practice drills
- 🎓 Preply — 1-on-1 lessons with personal feedback
📚 Popular series
🆕 Ep. 9: The lies of the Japanese syllabary
Discover the real sounds hidden behind rōmaji, explained with IPA.
Ep. 8: The 4 types of 〜ている
Why the same 〜ている shifts meaning depending on the verb type.
👋 About Mundial Keigo
Hi, I'm Mundial Keigo.
In Spain I earned a pro football coaching license (Level 3), worked in guest-services at the Ritz-Carlton, and handled B2B sales at a food-import company. I've used keigo and business-level Japanese every day in real settings. Because I learned Spanish, English, and Catalan on my own (Japanese is my native language), I can explain the "why" behind Japanese grammar from the learner's side — not just the textbook's.
🎓 1-on-1 lessons on Preply
This is where what you've learned in the videos and articles becomes real conversation. Grammar, pronunciation, natural phrasing — tuned to your goal.