Marina is a personal trainer with one of the biggest breasts in Japan, a K-cup of 108 cm. Her unique training doubles the sweating effect, leaving her cleavage soaked! When physical fatigue accumulates and lactic acid is produced, she gives a special massage with a loud bang! This improves blood circulation and blows away excess fat. Her intense exercise that gets your heart rate up and careful instruction even for beginners make her the most popular, with a six-month waiting list.