Tập 6: Kazuto gặp Rin Asakura, người tự nhận là chị gái của anh và là một rô-bốt đến từ ngoài vũ trụ.

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Kazuto wakes up the next morning only to meet a young girl by the name of Rin Asakura, who claims to be his little sister, unaware of her unusual powers of influence. When Narue sees them walking to school together, she suddenly feels unhappy and worried. Narue runs to the school roof and Yagi, who follows her there, notes that Narue is having feelings of jealousy towards Kazuto. When school lets out, after Rin uses her powers to calm down many students arguing over her, she takes Kazuto with her down the street. She reveals that she is from outer space and that she has been watching him all along. Bathyscaphe has detected mind control pulses coming from Rin, who is really an android. When Narue teleports to their location, Rin nearly forces Kazuto to kiss her in front of Narue. However, when Kazuto manages to reject Rin, she begins to malfunction and fall over onto the road. It is shown that Messa assigned Rin to bring Narue back to Nihon. When an oncoming truck approaches, Rin snaps out of it and rescues Kazuto from being run over. Although she failed her mission, she realizes how much Kazuto really loves Narue, before departing back to Messa. Narue shares a kiss with Kazuto, much to his surprise. (Source: Wikipedia)