My girlfriend's younger sister is the strongest heroine!? The world's most advanced cheating temptation, Kanna Seto, secretly approaches me (SNOS-093).

Missed the last train and suddenly barged into my house—it was my girlfriend's younger sister, 'Seto Kanna'! Relaxed in her pajamas. A smile lingering after her shower. A devilish side suddenly revealing her naturally large breasts. "Looking at my breasts~ Want to make love with me~?" Completely and subjectively enjoying the feeling of being the strongest heroine's younger sister. Kanna-chan's overwhelming charm, instinctively attracting you, will leave you mesmerized! The strongest, most erotic and cute girlfriend's younger sister seduces you with her watery eyes and braless breasts! Don't you want to have forbidden, extramarital sex with that Seto Kanna? Feel Kanna-chan's breath in your ear, deeply immersed in the bliss of sex. "Keep it a secret from your older sister, I love you the most, let's make it even more comfortable together." The ultimate moment of possessing Seto Kanna's beautiful face and body. Gazing at each other while kissing and penetrating. In short, cute. In short, sweet. In short, healing. Reason has been blown away. "I want to cover up the sex with my older sister!" How can I resist?!