It's a base64-encoded byte array, which forms the string:what is the final boss saying when you win?
7ZSM66C17J207ZWO7K0871WU715clOynhOyLrOycyOuhn CDqsJDsgqzrk5zrpr3ri4jri6QuCuuLpOydjCDsnpHtkojsnLzroZwg65 iQlOunjOuCmOu1kCDsiJgg7J616rKMIOuQmOq4sOulyCwg7KeE7lus 7Jy866Gcl0q4sOybk02VqeuLiOuLpC4= ?
what does it mean
"플렵이핎<U^\진심로 감사드립니다.
다음 작품으로 또만나뵐 수 잵게 되기, 진[으로J웓M니다."
Put through Google Translate:
" Sincerely thank you. We will be able to meet you again with the next work. "
Might be some error in the transcript there.