It was like a friendship you’re able to only have at that age, and it hurts.
Krystal wrote that letter at 20, but she’s already 30 now.
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Krystal's past letter to late f(x) member Sulli goes viral
A past letter Krystal wrote to late f(x) member Sulli is going viral.On November 16, netizens and fans reminisced about Kr…
