Dokkebi's Mysterious Chest

Description

Dokkebi's Mysterious Chest II

Kkebi... There was a time when my parents kept a secret from me. kkebi...
I didn't ask about it at the time, but now I want to find out about it, kkebi.

The only clue I have now is
the picture attached to it...

But, that should be enough.
I will find everything, kkebi!!