Starting with the shocking line, "Hey! Big brother! I don't want to do it with anyone but you...", this work shines with the performance of Miho Nana. Some say they want to marry Saika Kawashita, but she's the type they'd want to date, the No.1 actress they'd want as a girlfriend. Although some bought it because it was on sale and found the content disappointing, upon watching... Nana is so cute!! Their impression completely changed. It's a wonderful work that makes you wish for an incredibly cute younger sister who is bright, cute, sexy, and full of energy. The innocence and cuteness unique to a slender lolita younger sister are well utilized, and fans say they want to hear lines like, "With my mouth? Or my pussy?" Just being called 'big brother' gives them the confidence to cum; she's undoubtedly No.1 in cuteness as a younger sister character. She's just so cute, that's all there is to say.