Secret of the Ayanokoji House!

The Secret of Ayanokoji House is the fifty-second Japanese episode of the MegaMan NT Warrior anime, and was not adapted into the English dub.

Synopsis
When a vacuum robot sucks up everyone's PETs, Yai and her friends are forced to explore the booby-trapped depths of the Ayano mansion in order to retrieve their stolen NetNavis. Yai's comical and clumsy maid Sakurako makes the excavation more difficult for the cast.