Making Out with a Vampire [R18]
The secret base of Raphael's female clones was built more differently than the other two: the initial base on the 30th Floor of the dungeon and the main headquarters on the bottom floor of a conquered 20 Floored dungeon.
Since a noble would be visiting there, namely Elise, the building was made of concrete and was constructed like that of a villa. There was even a bathhouse and a hot spring for more luxurious services.
The size of the building was larger as well. There were more rooms constructed on the second floor. Unlike their base in the dungeon, the rooms of the villa were notably more spacious.
The building itself was intended to become a love hotel, exclusively for the use of Raphael and his female clones whenever they wanted to go to bed with their paramours.
Raphael did not bring Czarina and Inari to the villa yet since their house in the dungeon was enough for them. But he had been planning to bring them there not long in the future.