Koharu and Eievui - The Miracle of Evolution

Barrierd has launched the so-called "Barri Channel" in order to shed light on the seven wonders of the Sakuragi Laboratories! What it's going to shed light on this time is Koharu's non-evolving Eievui?! Can it solve the mystery of this Eievui?! In addition, the radio show "You Are Swift Radio" is soliciting listeners to submit their problems?!