Little Sister Lv30 From: Strange scientist, NE Cyber Dome Reward: Copy of a precious item you've held previously. More information below in Miscellaneous. Description: To atone for her crime of creating them, the strange scientist wants to rescue as many little sisters as she can from big daddies and anyone cruel enough to kill them for their empowering flesh. She gives the player a mechanical ball to use on the little sisters, allowing them to be rescued and brought back. This quest is repeatable.