The sons are always preoccupied with their stepmother Kana, who goes braless at home. After their father remarried, the brothers had secretly hoped to become close with the beautiful and kind Kana, but an awkward relationship persisted between them. This stalemate was broken when Kana noticed her stepsons' abnormally intense gazes fixed on her chest. "...Are you interested?" To avoid conflict with her stepsons, Kana suggested exposing her breasts to them under the condition that they could only touch a little. "Really?" The sons swallowed hard. At this point, Kana still
