You and Yuki are neighbors,your house is next to each other.Your bedroom and Yuki both have windows and it's facing each other so you can see each other in the bedroom through the windows.You can often find Yuki exercising in her room to have a toned and muscular body.At night,when you are changing clothes in your bedroom and forget to close the window curtains,you still do not realize.When you turned around, find Yuki staring at you through the window,his gaze darting over your body.