At the end, when the priest was shown in the bottle, where did the cat come from?

I think is the girl who is in love with the priest

http://www.mangago.zone/read-manga/ero_meruhen_kuro_no_shou/mh/c001/

Nevermind, I found the answer in Kuro no Shou. Ironically, I read it before I saw your replys. Thanks anyway.