Miku asks if she's sure that she loves Wesugi so much that she can't bear to leave him. Miku tells her that she wants to go to a hot spring one last time with Usui, but Miku has a weird story to tell her. She wants to know where Usui is, and Miku says she'll tell her before they leave. She tells Miku that she has a request for her: she wants Miku to assume that she is Usui's sister, and that Miku and Usui should meet again before they go. She's going to figure out who Miku is, at least, but she doesn't want to keep losing, so she wants her to pretend to be Usui and tell Miku all about what happened on the trip to the hot springs. She also wants to make sure Miku knows that Usui isn't pretending to be her sister, which means Miku's younger sister, the one disguised as her older sister, is also in on the secret. She asks Miku if she can ask her one question: "What love is?" Miku replies that it's "embarrassing" to ask her that question, and she thanks Miku for finding her.