Mute and plain stepsister Kiiro, who is expressionless at home, wearing glasses and no makeup. One morning, she appears with slight makeup. The brother, concerned about his sister, and she begins small changes in response. Unable to resist, the brother confesses his long-standing affection. Though the sister refuses due to their sibling relationship, they rub their crotches together, promising it will end with humping. Though it seems to end, their excitement lingers, and they eventually proceed to penetration. Once they have sex, they can't stop, repeatedly entwining their bodies and hearts.
  [ROYD-271] [English Subtitles] My reserved step-sister is plain and quiet, but when she takes off her glasses, she's a stunning beauty. Unable to resist, I approached her and had raw penetration from her hymen for my first ejaculation. Yuuki Koiro