User blog comment:Shadowneko/Masuko Mika in Happiness Charge/@comment-5885873-20140405144213

it was not Mika it was Miyo you can clearly hear saying Miyo Toei just gave us easter egg from previous series with a girl looking similar to Mika and having the same name pun just it wasn't Mika!

I even rewatched the episode and you can clearly hear Miyo not Mika! She might be Mika's sister or relative or anything but she is not Mika!