After not seeing each other for a while, my little sister now looks just like AKB48's former member Atsuko Maeda! Her face has matured into that of a young woman, yet her clingy, sweet personality remains unchanged—still pure and adorable in every way. Today, we spend time together like it's a date. Watching her innocently move around the hotel room, my heart begins to tremble. Will our sibling relationship take a new turn tonight? As her pure charm draws me in, my feelings for her as the opposite sex grow stronger and stronger.