Saya, a happily married young wife, sees her life take a dark turn when her husband's promotion plan, co-authored with his boss, receives high praise and suddenly leads to a promotion offer. Enraged that his subordinate might surpass him, the boss devises a scheme to ruin him—targeting Saya, the wife. After her husband leaves for work, the boss visits her and subjects her to torment with sex toys, forcing her to perform blowjobs beside her sleeping husband. As this pattern continues, Saya's body gradually falls under the boss's control...