The position of this camera was very clever, though it wasn't all-encompassing, virtually no part could escape its lens except for the spot on the ceiling above.
Long Qiuyu placed her hands on the wall, one foot on the opposite wall, and then quickly climbed to the ceiling using her hands and feet.
She moved inch by inch like this, successfully bypassing the camera.
Next, she encountered other defenses like patrol and alert measures, but ultimately Long Qiuyu made it to the basement.
Keeping prisoners in the basement was a habit of Fledd's, because he liked to disembowel people, yet he didn't like to dirty the villa.
There weren't many prisoners in Fledd's cells, and basically none survived the night. The reason Demon Princess was spared was that Fledd wanted to extract some information from her.
Soon, Long Qiuyu found the cell where the Demon Princess was held.