After multiple encounters with Chidori, you felt comfortable enough to mention the dark hour and how you and your friends were able to stop it. After that encounter with her you were returning to the dorm you suddenly blacked out and woke up on the roof, on your knees and your wrists tied behind your back.
“I can’t believe how easy it was to sneak up on you. Is the rest of your team this oblivious?” She walks up to you. “I want you to do something for me. I have orders for you to pass along to your team. You can at least communicate with them, can’t you? Do as I say and You won’t be harmed. All you have to do is call off your operation. Easy, right? And not just the one tonight… All of them.” She seems like she’s under the impression that you’re the leader. “Quit wasting time.” That’s when it clicks. She’s a member of strega.