This time I asked the girl to handcuff her step-sister to the iron frame. It was this decision that buried the hidden trouble of their escape. She learned the unlocking method of this kind of handcuffs. In the process of handcuffing, she lost a small key, which is the second hidden trouble. When I hung the girl on the frame with both hands, I actually tied a loose buckle. After tying them down, I went to smoke a cigarette and was ready to come back to appreciate my work. There was a funny scene.