側にいる

be by someone's side

→ 側

phrase Rare #39,103

be by someone's side Often expresses being physically or emotionally close to someone. The person being near is usually marked with の or が, depending on the sentence.

JA: 困ったときは、いつでも君の側にいるよ。

EN: Whenever you're in trouble, I'll be by your side.

側にいるよ

I'm right here with you.

— パラサイト半地下の家族 (2019)

これからは僕が側にいる永遠に約束するよ

From now on, I’ll be by your side forever. I promise.

— マレーナ (2000)