/jp/ - Otaku Culture

I'm looking for a Sakuya doujin I read long ago on danbooru but can't find now. I remember that it started with Patchouli and Remilia drinking tea and philosophising on an SDM balcony, before a kid vampire hunter Sakuya shows up in rags and a knife. Remilia then convinces her that she was sent to die and she should serve her instead, and gives her the name Izayoi based on the current moon cycle. I don't remember anything about what happens afterwards

btw I also asked >>>/wsr/221378 but since they can't remember either I came to ask here because im a giant faggot