Two masochistic men arrive at Mistress Shika's domain, aspiring to become her exclusive male slaves. To mold them into perfect submissives who can endure her preferred torments, the Dominatrix begins rigorous physical conditioning. She whips and trains their legs through quadrupedal movement and horseback riding drills. To prevent unwanted erections, she subjects them to relentless handjob training, punishing any arousal with severe flogging. During face sitting sessions, she strictly controls their breathing and enhances their endurance by submerging them in ice-cold pools. She further strengthens their stamina with penis candle play and human furniture endurance exercises. As part of survival training, she forces them to eat insects, performs anal fisting to stretch their rectums, and brutally whips their penises to forge resilient bodies. In an especially grueling regimen, she inserts vegetables into their anuses as feed, then compels them to retrieve and consume the food themselves. To earn the role of her personal slaves, these men must endure every harsh day of this merciless training.