からにとじこもる

殻に閉じこもる

表記・読み：殻に閉じ籠もる・骸に閉じこもる・からにとじこもる

1. 1

   to withdraw into oneself; to shut oneself away; to seclude oneself

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