Shy and innocent, her younger sister was made to become a sensitive premature ejaculator by nipple harassment and made her nipples come over and over again. Sumire Kuramoto

The MOODYZ 2023 campaign 'Kuramoto Sumire Live Performance!' depicts the taboo relationship between her and her sister. The film revolves around 'nipple play,' with Kuramoto Sumire portraying the role of a sister experiencing her first encounter with a man.