Drama CD

These seemed to be sold quite a while ago. They are quite rare right now. There were all sorts of mature matters in it and its existence is being erased.
By the way, the chapter converted to Drama CD was Overlooking View. It seemed the portion of the story with the least action made it into the Drama CD.
The voice actors were all veterans. It was an all-star cast that boggled the mind at that time.

Garden of sinners Pamphlet: Kara no Kyoukai Settings Glossary