The Yukimura style has evolved at the shooting location. In particular, it is a binding shoot such as a lintel, a pillar, a tatami room, a futon, a legless chair, and a tatami room desk in a Japanese house. The first installment introduced Kamoi, the second installment introduced fusuma crucifixion and futon, and the third installment introduced chair binding. This time, the fourth installment is desk binding and binding using a tatami room desk. Open legs shame attack using a tatami room desk, neck rope shame using a tatami room desk, service play, a chair on the desk, cross-legged shame bondage, etc... I'm blamed every night, but I can't help but have a body that can't help it. ….