Since this word consists of a kanji with hiragana attached, you can bet that it will use the kun'yomi reading. You didn't learn that reading with this kanji, so here's a mnemonic to help you:
If you're trying to be graceful and polite you have to keep your secret sheep toe (しと) under wraps. You're kind of fond of your sheep toe (it's unique after all) but you're careful to hide it when you want to be all modest and gentle and all that.
Kanae has a very graceful personality.
My mother lacks gentleness.