Hiori and Ruka have one thing in common: they're both magical girls called Reflectors; they use their powers to help resolve emotional struggles and protect people's hearts.

Hiori tries to stay strong despite finding out the truth about her sister; Ruka tries to get Hiori to be honest for everyone's sake.

Momo tracks down Mio to ask her about their past and find out why they're enemies now.

Momo tells Hiori, Ruka, and Miyako what happened with Mio and tells them what's supposed to happen in three days; Miyako feels differently about what they should do next, causing a rift between all of them.

Momo and Hiori go to save Ruka and have their final showdown with Mio and the others.