Note1: The comments claimed that this is actually the aftermath of the Alices killing a pet yukkuri. Please tag conservatively until fully translated. Said comment follows :
the main idea of the story is ：the anon's beloved pet yukkuri reimu were raped to death by a gang of yukkuri alices, which turned all his devoted love to reimu into a twisted hatred of alice. He breeds them carefully and then torture them by cruel means.
Note2: Supposed based on the below stories.