虜 means captive and is a JLPT N1 kanji. It has 13 strokes and uses the tiger stripes radical (虍).
Stroke order · 13 strokes
On'yomi (音読み)
リョ、ロ
Kun'yomi (訓読み)
とりこ、とりく
Radical
虍 · tiger stripes
Strokes
13
How to remember 虜
Caught in the tiger's (虍) paw by force (力) — captivity. 捕虜 (prisoner of war); 〜の虜になる means being 'captive' to something's charm — 抹茶の虜 (captivated by matcha)!