Dalvie

Dalvie is one of the residents of Transylvania, and the owner of Lil Shop o'Horrors.

Meeting Dalvie
Lil Shop o'Horrors becomes accessible after finishing Manor quest, alongside the other shops and houses in Transylvania.

Special wares
Dalvie is initially unwilling to provide you access to the special services (something they're doing behind the locked door in the shop), unless you try a sample of their wares first. The course of this event depend on wether female partners are enabled or not.

Female partners enabled
Dalvie would give only vague instruction that "it's not here". They're actually referring to one of their past clients, a maid named Marin – the same one you previously had a conflict with while infiltrating Manor.

When approached, Marin reveals that she's is still angry at you. When you try (and fail) to establish a contact, she would demand you serving her – while wearing a set of special underwear; it would soon become clear that it's enhanced to act as if it's alive, teasing you. Once you done with the "challenge", you can purchase the Living Underwear from Marin, with price depending on how satisfied she was. Default price is 1000, with her increasing or decreasing it by 200 depending on your performance.

Once you try the Living Underwear (regardless of wether you bought it or not), you can report to Dalvie and learn what they're hiding behind the locked door.

Female partners disabled
Dalvie would offer you the Living Underwear "for free". However, once you equip it, you would notice that it's impossible to remove, and then it would go alive and start teasing you. Dalvie would only give you the magic flute which can control it if you pay them 1000 ,. Once you done that, you can learn what's behind the locked door.

Body shop
After testing the "wares", you can talk to Dalvie and inquire about the locked door. Regardless of your answer to their provocative question, they would unlock their own Body Shop to use. Here, you can change your body, with most options being more or less "animalistic" (like animal ears, or tails). Using it costs 500 upfront for every use.