A year after Lala came to Earth, she is all the more determined to make Rito fall for her, putting all her effort into it, even though she knows that Rito actually loves Haruna. Poor Rito will have to face tough times since Lala's younger twin sisters, Nana and Momo, now live in the same house, along with his Rito's reliable sister, Mikan, and Celine. Fun and trouble await with their other friends from school and the many other characters, with Lala's usually catastrophic inventions, Yami's contract to kill Rito and many pending issues from the first season. “不做平庸的路人，只做华丽的后宫王”。 结城梨斗（渡边明乃 配音）尽管沉默寡言，但拥有一颗温柔善良的内心。内向的他暗恋名叫西连寺春菜（矢作纱友里 配音）的女孩，然而，他选择了把真挚的感情藏在心底，只是偷偷看着她已解相思之苦。 终于，梨斗再也无法抑制内心的感情，他鼓起勇气，决定向春菜告白，然而，一连串意外的发生让他的告白对象变成了名为菈菈（户松遥 配音）的女子，更加匪夷所思的是，菈菈的真实身份竟然是戴比路克星的外星公主。就这样，梨斗开始了和菈菈“斗智斗勇”的生活，随之而来的不仅仅是接踵而至的各路麻烦，竟然还有尾随菈菈而来的危险外星杀手，面对这样的险境，梨斗还能愉快的玩耍吗？
