おにになる

鬼になる

表記・読み：おにになる

1. 1

   to harden one's heart; to steel oneself; to be ruthless

   expressions (phrases, clauses, etc.)五段動詞（る）idiomatic expression
2. 2

   to become "it" (in hide-and-seek, etc.)

   expressions (phrases, clauses, etc.)五段動詞（る）