Is it a dream or reality? ?When I registered on my smartphone screen for a service that uses AI analysis to dispatch a ``younger sister'' that matches the registrant's wishes, it turned out to be Rin-chan, a cafe clerk! ?He fully approves of his brother Hinata's actions and gives him a seductive blowjob even though he is in the middle of work!When her colleague Suzuki delivers, Rin-chan forgets her glasses and mistakes her for her older brother Hinata and serves her with all her might!Rin, who is heartbroken after realizing that she made a mistake wearing glasses, and her older brother Hinata have lovey-dovey sex!