I explained that it was a masturbation support job for Yui Hatano, a famous actress, and secretly filming another project. Yui-chan can't stand it anymore and starts masturbating without knowing that she is being secretly filmed. After that, I was frustrated during filming, and filmed how I indulged in masturbation during recess and in the bathroom. This work is a documentary that repeats masturbation in order to turn it into a state of breaking the technique and going crazy with abnormal pleasure masturbation.