Infinity 1 Premonition - Part 1.A malevolent inter-dimensional being known as Master Pharaoh 90 plans to overtake Earth and instructs a woman named Kaolinite to destroy "the light of destruction" which he regard as a threat to them. At the same time, Rei, Mamoru, and a teenage girl have a disturbing vision about three shadowed Sailor Guardians, which is accompanied by a voice that calls for the girl's awakening and "the beginning of doom". A news report airs concerning students being transformed into monsters in a process called "Reversion". Usagi and her friends meet a famous auto racer named Haruka Tenoh, while Mamoru encounters a prominent violinist named Michiru Kaioh. Makoto and Minako recognize their school uniforms from the prestigious Mugen Academy, a high school attended by elite students. Suddenly, another student from Mugen Academy is transformed into a monster in front of the Sailor Guardians, who transform and use their powers to bring her back to normal. Haruka and Michiru are seen observing the altercation from afar. Usagi and her friends later learn that all victims of the "Reversion" so far have been Mugen Academy students and decide to investigate the school.