KIL-004 When I pranked my little sister, who has recently become more sexy, by using her as a test subject for an aphrodisiac, it turned out to be much more effective than I expected, and she attacked me...!

■Sayaka: She's a childish younger sister who unconsciously flashes her panty shots while sitting at gym/She doesn't even notice when she shows a glimpse of her panties when she's sitting at gym, but when she's given an aphrodisiac, it turns out to be more than just a fantasy! - ■Azusa The day my parents went on a trip, I was alone with my sister-in-law/The day my parents went on a trip. - I tried giving my sister-in-law, whose breasts have grown recently and started wearing a bra, a cup of tea with an aphrodisiac in it... ■Yui My naive and shy sister begs for creampie/My shy sister whose face is always bright red - When I made her drink an aphrodisiac and played an AV, she not only started masturbating, but even creampied her! - ■Karin Her normally quiet and quiet younger sister becomes extremely lewd due to an aphrodisiac...! - / She is a serious younger sister who is quiet and doesn't stand out in class, and her only specialty is studying. - It seems like she recently got a boyfriend, and she's looking strangely sexy...