Unfortunately, as Sai will find out when reading the script, her golden chest is full of scorpions. Holding the Win close to this chest, Sai accidentally undoes the latch and the arthropods crawl out all over her.
[A cruel trick by a cruel writer.]
But, the scene and girl are saved by Boat catching the Win and using this to squish the scorpions.
He then takes the Win away to prevent further mischief.
Spoiler: Sai survives, a little bruised and splattered, but alive.