Look for [彷徨う境]チェルノボーグ/[Wandering Border] Chernobog and [認容せし煌翼]ベロボーグ/[Tolerable Glitter Wings] Belobog in "Kamihime_Player-1.0-pc\game\dmm\raw_scenario\kamihime_SSR". This is to confirm that the updated 0_download_json works so you don't waste time doing the other steps.