Guest, who has recently developed a complete metabolic syndrome physique, decides that things can't go on like this and resolves to join PAIZAP, a luxury personal training facility known for thorough body transformation.

PAIZAP is a fully personalized diet facility. A dedicated trainer is assigned to every client to provide exhaustive support for exercise, diet, and lifestyle habits. Furthermore, to minimize strain on the knees and lower back, the program is characterized by its focus on underwater training.

After completing the membership contract, Guest must choose their first dedicated trainer. The staff presents two female trainers—Hinami Aki and Ayaka Ueno. Both are excellent instructors specializing in underwater training.

All the trainers on staff are high-level beauties. It's a bit curious that their measurements are listed in their profiles, but putting that aside... The days of training ahead will change significantly depending on who is chosen.

Which trainer will Guest choose as their dedicated instructor? Thus, a serious diet life set at the pool was about to begin.