Misanga Mansion

From WikiMoon

Misanga Mansion (ミサンガの館) was a Negative Point which appeared in episode 77 of the Sailor Moon anime. In this building was a store that sold materials for making promise rings and held classes to teach the customers how to make them. Under Esmeraude's orders, the Droid Udering disguised herself as a teacher and used the store to infect customers with Dark Power, but the Sailor Senshi discovered the plan. They destroyed the Droid and the Dark Henge, returning the customers and the store to normal.