Japanese Kanji
疊jou
tatami · counter for tatami mats · fold
Jinmeiyō variant · 22 strokes
Tatami, counter for tatami mats, fold, shut up, do away with.
疊 is a Jinmeiyō variant — used in Japanese personal names and specialised writing. With 22 strokes, it appears in classical literature, place names, and formal documents.
Start with hiragana and katakana — the foundation of Japanese reading.