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に関わる

be related to; concern; affect

→ に
phrase Uncommon #13,311
be related to; concern; affect Often used for matters that concern or affect someone or something. In 命に関わる, it means “life-threatening.”
JA: これは皆さんの命に関わる大事な問題です。
EN: This is an important issue that affects everyone’s life.

真実を述べるのは私の名誉に関わる問題だ。

It is a matter of honor for me to tell the truth.

神父君の助けが必要だ大きな悩みがあるんだ魂に関わる重大な問題だ

Father, I need your help. I have a serious problem—a grave matter concerning my soul.

— ニュー・シネマ・パラダイス (1988)