Earlier the little actress on the left shared her autograph from Yunho. Here is the other child actress sharing a photo of them with Yunho, and  it looks like she got an autograph herself~ ^^

Yunho’s message:
To Om Seohyun (the 🙆🏻)~♫
cute” seohyun~♫
I hope you’ll always~ be happy!! {t/n: rest not clear but looks like “I’ll be cheering you on”}

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Credits:

youngsun2481526: here,
Translated by @snxy,
Shared by TVXQ! Express