[Machine Translation] Join Now! The intensive 7-day diet! The 2021 edition of "Billy's Boot Camp," which was released in 2005 and sold 1.5 million copies, is now available! Boot camp is a training method originally practiced by the military to slim down the body in a short period of time. Billy, who served as a special commander in the U.S. Army, created this unique workout based on military-style training. The 2021 version consists of seven 30-minute exercises tailored to the intensity of Japanese people, and concentrates on fat-burning, stomach, legs, buttocks, arms, and other areas of concern. It was developed so that it can be practiced casually using things at home such as plastic bottles and chairs. Get back in shape with Captain Billy! Includes a lesson calendar.