Kanna and Kona, who became sisters-in-law when their parents remarried, decided to live alone for a while because their parents were away on their honeymoon. And in her life with her sister-in-law, Kanna can't suppress her lesbian side and gradually begins to grope her sensitive body ... - She is slowly impatient with her sticky nipple stalker sister-in-law, and she is relentlessly stimulated by undeveloped pink nipples, and her body eventually develops into a sensitive premature ejaculation constitution that only her nipples are.