だけなのに

even though it's only; even though I just

→ だけ
phrase Rare #38,652
even though it's only; even though I just Expresses surprise or frustration that something happened despite the action or amount being small or limited.
JA: 少し休んだだけなのに、もう疲れた。
EN: Even though I only rested a little, I'm already tired.

戻すだけなのに何がそんなに難しいの?

Why is it so difficult when all you have to do is put it back?

— アイム・スティル・ヒア (2024)

練習してるだけなのに彼は簡単に認めない

Even though he’s just practicing, he won’t easily admit it.

— 花様年華 (2000)

目を離しただけなのにすぐこぼれた。

I only looked away for a second, and it spilled right away.