Keiko Sugimoto, a married woman, confesses her inner turmoil. I've been driven wild by someone I love. Even a simple kiss sends electric shocks throughout my body, and when he grabs my breasts from behind or plays with my nipples, I gush liquid from deep inside—proof that I'm an extreme submissive. Being blindfolded and tied up by him only heightens my arousal. I'm nervous and excited about the risk of my husband finding out, yet I can't help but fall deeper for him, feeling like a sinful woman. How much longer will these feelings keep growing?