A cafe where meetings and dates takes place. The strawberry pie there is said to be unmatched.
The only link with another tale.
Sometimes, a foreign vampire or a habit-wearing nun come to have tea.

Garden of sinners Pamphlet: Kara no Kyoukai Settings Glossary

Ahnenerbe is a coffee shop. The name means “heritage” in German. Chikagi and Hibiki start working part-time at the shop after they enter high school. Although we decided some rules for how to handle parallel worlds, since we did this drama CD the rules seem to be rapidly fading out of use. Slippery slopes are scary.

HibiChika Complete Capture Book: Mahou Tsukai no Hako Small Encylopedia