One night, after finishing sex with her husband, the wife is unexpectedly caught by him while secretly enjoying some solo pleasure in their quiet room. Until now, the husband believed their intimate life was completely satisfying, but in that moment, he realizes his lovemaking has failed to fulfill his wife's desires. Crushed by shock and regret, he vows to truly love her and resolves to guide her to the highest realms of pleasure with genuine passion and skill.