Nanako tries to become closer friends with Mirai by taking her to karaoke, only to find her not very willing to sing alongside her. Later, as Mirai's responsibilities as Uogokuro-kun increases, she asks Nanako to help train her to become as good as Yui. During practise, Mirai injures her leg attempting to perform Yui's signature backflip, with Saori warning her not to do it again as kids may attempt to imitate it. On a day where Yui and Mirai are taking turns as Uogokuro-kun, Mirai receives some praise for protecting Yui's identity from a peeking child and, despite her injury, manages to give a performance on par with Yui's. Afterwards, Nanako and Mirai manage to become closer friends without even realizing it.