The addition of the tentacle motif is what pushes this keyword into extra-niche and meme-heavy territory. Originating heavily from Eldritch lore and classic Japanese ero-guro and hentai subcultures, the juxtaposition of pure, holy shrine maidens against tentacle elements has become a massive internet trope.
This is the core premise. It likely references a specific title or a trope within this genre. The phrase "ねこ巫女ちゃんを捕まえた!" (Caught the Cat Shrine Maiden!) appears as the exact title of a Live2D interactive game. The idea of "catching" a shrine maiden sets up an interactive scenario where the player has agency over this anime-style character. i caught the cat shrine maiden live2d tentacl extra quality