「入念に責めればおっぱいの方がおまんこより気持ちよくなるのでは？」ユーザー様よりご意見を受けたSOD制作陣は女子社員を検体とし身をもって検証。巨乳～貧乳、様々なおっぱいを触診からおもちゃ責め、様々な角度から乳の感度を模索していく。最後の二人は同時に実験。恥ずかしさ倍増で感度にも影響が…？
“If you criticize me carefully, wouldn’t breasts be more pleasant than pussy?” Big breasts to small breasts, various breasts are touched and toy blamed, and the sensitivity of milk is explored from various angles. The last two are experiments at the same time. Doubling embarrassment and affecting sensitivity…?

– JavGG.net