Okuu is a very volatile captive, and that has more truth as a literal statement than because of any short temper she may have. If she gets the chance to fight back, she very will likely blow up the room she's in (and you with it). Fortunately, she's easy to convince to be tied casually so be sure to talk it out with her without letting her summon her Third Leg. Her outfit allows for both a skirt-hiking and chest-emphasizing shibari and they are recommended to be able to admire both her thighs and breasts. Also be sure to incorporate her wings into the tie and a focus on her hair with her gag. She doesn't like having her bow removed, so be nice and don't use it as part of her gag. Go wild tickling her once she's secured.