As Kirino organisings thing with school and friends following her return from America. Kyosuke grows concerned that she might start ignoring him again due to the way he forced her to come back, as well as struggling to find the meaning behind the kiss Ruri gave him when he went to retrieve her. Later, Kirino once again calls upon Kyosuke for life consultation, having him take her to Akihabara to watch a trailer for the next Meruru season before engaging in a long-missed shopping expidition she spent the entire night planning. As thanks for his help, and to celebrate a year of life consultation, Kirino gives one of her eroge purchases to Kyosuke to play. 

故事主要围绕表面上容姿端丽、十项全能，但暗地里却迷上了萌系动画以及美少女游戏中的妹系角色的主人公高坂桐乃，以及知晓了妹妹桐乃这一秘密的哥哥高坂京介而展开。第2季的制作公司将由原来的AIC Build变更为A-1 Pictures，其他主要制作班底则保持不变.