訓 しあわ(せ),さいわ(い) ・ 音 コウ
漢越音: hạnh
The character originally drew a pair of handcuffs: escaping them is what luck felt like. That is why so stern a shape means happiness, good fortune.
Stroke data: KanjiVG (CC BY-SA 3.0) — kanjivg.tagaini.net
家族といると幸せです。 (かぞくといるとしあわせです)
I am happy when I am with my family.