Issue 90, July 4th, when Sister Bo meets the super-powered Taku Yoshimura! When Sister Bo meets the super-powered Taku Yoshimura! Hello folks, I am Master Z, a good-looking but uneducated man who just turned 18 this year. The following content may involve FBI warnings. Minors are asked to watch Hatano Yui's Master Z plot with the supervision of their parents. The plot of hypnotizing a married woman and training her is SSS-rated.