Dakuten and handakuten
Small marks shift the sound family without changing the base shape.
Start with kana for free, hear each character, review sound rules, and move naturally into a 7-day trial when you are ready for the full study path.
Current focus
Every character opens a focused detail view with pronunciation and a writing hint area. Stroke animation can plug into this panel later without changing the page structure.
Tap a character to open pronunciation and writing guidance.
Detail
Stroke / writing hint area
Small marks shift the sound family without changing the base shape.
A small や / ゆ / よ or ヤ / ユ / ヨ compresses the sound into one beat.
Katakana often stretches sound with ー and adapts foreign pronunciation.
Quick check
The first quiz stays lightweight on purpose. Finish it, then move into the 7-day trial for vocabulary, grammar, and review.