Mikan feels misplaced after seeing Rito become closer to Momo. She goes shopping and almost passes out on the way home due to the intense sun. Momo runs to save her but Kujou Rin grabs her and offers to take her to her place. Mikan feels the need to vent and starts telling Rin about how she feels misplaced. While Rin expresses negative thoughts about Rito, Mikan explains that despite his perverted actions, Rito is a really great guy. She also tells Rin about how everything seems to have changed since Momo's arrival. Although Mikan appreciates Momo helping around the house with chores, but Mikan feels she is no longer needed. Rin tells Mikan that no matter what Momo does, if Rito is how Mikan describes him, he would not want Mikan to leave. During the conversation, Momo eavesdrops from the rooftop.
Meanwhile, Yui keeps wondering about her crush for Rito as she goes for a walk. Haruna finds Yui and asks Yui to join her. Haruna takes Yui to the cosplay cafe with Risa and Mio. Risa tells them about the time where she went on a date with Rito. She starts braging about the how she had slept with Rito. Haruna rapidily blushes over Risa's sexual claims, but Yui refutes these statements, explaining that Rito is not like the other boys despite his perverted actions. She knows he does not do them on purpose. As they head home, Yui stops and understands she is shameless herself since she can not stop thinking about being with Rito. She even imagines herself pregnant with Rito's child. At the bridge on the way home, Mikan sees Momo who offers to take her home for the rest of the way. Mikan understood that Momo was eavesdropping the entire conversation earlier; she does not yell at her though. Momo tells Mikan how she envies her since Rito has been with Mikan much longer than her. Momo remembers how Rito told her Mikan is his "one and only, dear little sister" and how he considers her more than that. Momo also expresses her feelings for Rito to Mikan. Before they could continue, Rito appears running and screaming as he was very concerned about Mikan. Mikan pretends not to care but feels happier on the inside knowing that her brother cares for her.