Sakura's mansion is very western in style, and is extremely large, containing several guest bedrooms and an immense living room, dining room, and kitchen. It has a complete bathroom on each floor, and a few of the bedrooms are equipped with private bathrooms, including Shinji's (former) room, and Sakura's current room.
The kitchen is equipped with a large pantry, which Sakura keeps stocked with food at most times.
The mansion has two main defense methods. The first, are the bugs.
As Sakura has masterful control over insects, she has created many immense colonies over the years which infest the walls of her home. She has several kinds of ants infesting the various rooms, including giant African army ants and bullet ants, spiders nesting throughout the house ready to sprint out and inject deadly neurotoxins with a single bite, hornets and bees living outdoors, and she may create many more. They hide in the walls, the floors, the drains, and the dark corners of the house. If you are unwanted here, they will strike, and you very likely will die a gruesome death, as you're struck prone by toxins and eaten alive by angry bugs. Approach with extreme caution.
Bounded Fields: Something Faust always complimented Sakura on was her innate talent in the art of the creation of bounded fields. Sakura also enjoys the art of creating them, finding it somewhat relaxing, and has as a result has layered many, many intricate bounded fields all around the house. They are many and varied, from simple detection fields to incredibly complex, high-level fields that rapidly absorb any hostile spell actions and converts it into prana for Sakura to use at her leisure, causing fireballs to fizzle out if they trip the field. They reinforce the walls of the house to incredible levels, leaving only a few weaker points, which are still extremely damage resistant, such as the doors. Another notable one makes the entire house go dark, leaving an intruder vulnerable to the attacks of her insects.