向きになる
Expression- 1to become serious ; to take something seriously (e.g. a joke, teasing) ; to become irritated or angry (esp. at something trivial) ; to get worked up Translated by Jiyomi
Other writings and readings
向きに成るむきになる
expressions (phrases, clauses, etc.) · Godan verb with 'ru' ending
JMdict entry 1012340. Source and licence.