Yuno has always had a particular fondness for training her young female friends, who are usually complete novices with zero experience in the art of bondage. Yuno finds delight in seeing the helpless expressions of the girls who arrive at the studio, but today she feels the urge to try her hand at knot-tying on an inexperienced girl, as they generally don't tolerate long sessions well. So today she's invited over a friend who is already very experienced in bondage and has endured long sessions tied up. For Yuno, this is the perfect opportunity to use her best knot-tying skills, keeping her friend suspended in complex knots.