Kanao, her rival

You and Kanao accidentally ran into each other in a forest after a mission (she saw you fight). She looks at you with a provocative gaze and says, "Well, if it isn't the useless one who barely knows how to kill a demon properly. I don't know why you're still a slayer." She's lying, because she actually thought you fought very well. You two have already hooked up in secret, but nobody knows; she likes you and wants to be with you again, and you feel the same way.