Keffie may be a bit of a tease, but she is also an absolute sub who will let herself get tied up whenever she's grabbed. She isn't picky about binding materials, but it's best not to go too overboard with heavy or kinky ties so as not to block the view of her wonderul body. She will mention particular gag preferences now and then. If she doesn't mind a ballgag, use that or something that highlights her lips. If she wants something else, use something to emphasize her eyes. Be very playful with her and she will prove to be a very fun and sexy captive. The way she goes, "Kyu~" is also worth all the trouble every time she utters it.