Yui Morisaki is just your regular university student, her everyday life busy with her studies, the judo club, and an unrequited love… Everything changes when a little robot named Polka enters her life! All of a sudden, she’s granted the ability to transform into Radiant Princess Poni Ceres. Just in time to fight against the invading forces of Zydarg, an evil alien organization hellbent on enslaving all of humankind.
It’s been a few months now, and Yui is beginning to adjust to her new life even though her heroics are starting to affect her grades… But just as she’s getting comfortable with the regular trooper enemies, Zydarg escalates the conflict and starts attacking with actual monsters!? It’s time for Poni Ceres to up her game too!