[She's quiet for a long moment. She told him about the ritual part at least, so it's not like there's not much else to reveal. Since he picked up on her cue (as she sort of suspected he would, and how strange and interesting it is to think about that they've reached a level of understanding like that), she slides her arms around his waist and hides her face against him.

Her voice is slightly muffled, but still decipherable] When we were little, I got too far ahead of Mayu and she fell from the mountain path. [In the flashback something might've seemed a little--off. Hadn't Mayu been a little too far from the edge to just fall? Unless she's purposefully moved...

Mio, however, is none the wiser to that] It was all my fault, if I hadn't gotten ahead of her... I promised I wouldn't leave her alone after that, and I took care of her. She depended on me for everything and I never left her side. But I kept losing her in the village. I'd save her, and then I'd turn around and she'd be gone. It's like I couldn't win at all.