Go watch Toji no Miko, right now.
Alt text: Screenshot of a tumblr post by swordlesbianopinions that says: “While you were being heterosexual, we studied the blade”. The bottom of the screenshot is edited to look like a speech bubble and below there is picture of Kanami holding Hiyori in her arms.
I was waiting for someone to ask 😅
But yes, that is the one