9 strokes
快哉
kaisai
shout of joy; exultation
善哉
zenzai
sweet red-bean soup; well done!
直哉
naoya
Naoya (given name)
Study kanji on LenGaki

Get the Android app
The app adds offline study, home-screen widgets, stroke-order tracing, speaking practice with pronunciation scoring, and an AI tutor that answers questions in context — none of which fits in a browser tab.