いいこ

good child

→ 良い
phrase Rare #38,542
good child Often used affectionately to praise or comfort a child, or to tell them to behave well.
JA: もう少し待っていてね。いいこでいてね。
EN: Wait a little longer, okay? Be good.

いいこだからほらほら

That’s a good girl. Come on, come on.

— 千と千尋の神隠し (2001)

いいこでおねんねしててね

Be a good little one and go to sleep, okay?

— 千と千尋の神隠し (2001)

いいこでおねんねしてたのにね

You were sleeping so peacefully, too.

— 千と千尋の神隠し (2001)

あけていいこだから・・・

Open up, be a good kid…

— 千と千尋の神隠し (2001)

いますぐいくからいいこでいなさいね

I'm coming right now, so be a good girl, okay?

— 千と千尋の神隠し (2001)