Bunny wakes up in bed, remembering how they left the queen after the battle with Dark Moon and came home. Later that morning she learns that Rini will go back to Crystal Tokyo. After tearfully admitting that she will miss Rini, Bunny walks her to the park to begin the voyage home.

In the park, the pair meet Darien. Good-byes are said, and Rini hands Bunny the Heart Moon Scepter from her mother. Once she is gone in a flash of light, Bunny and Darien sit on a bench, thinking about the future. Just as they kiss, Luna P and Rini fall from the sky onto Bunny's head. She has come back to train with the Sailors in the 20th century.

Out of blackness, the voice of Pharaoh 90 commands a woman to destroy the light that will cause their destruction, a light similar to that of their own Taioron Crystal.

Darien and Raye sense a new presence.

As Bunny rushes to school, Rini learns of a recent attack in the bay area by a beast caused by genetic regression. Bunny meets Darien, but as they kiss, he pulls back startled by a voice in his head, "Let the destruction begin." Bunny watches him leave, wondering if her happiness is ending already, but stoic in her sense of duty.

A woman with flowing hair gets out of pool as her helicopter arrives. She meets Haruka at the racetrack as the crowd explains he is Michiru's boyfriend, both Infinity College students.

After school, Bunny and Molly meet the others at the arcade. They all put Bunny at a new racing game where she wears a helmet and everything feels real. As she increases speed, they notice the person next to her who is already winning, going 300 km/h.

Bunny crashes, losing the game. The person next to her gets up as well, and Mina and Lita think he's cute.

Outside, Michiru drops a hand mirror and Darien picks it up for her. She looks at his eyes in the mirror and asks if he was a prince. He looks at her, startled.

Haruka leaves with Michiru, then Molly recognizes him as a famous racecar driver who goes to Infinity College. That school is in the center of the Infinity Area, a part of the Tokyo Bay land reclamation project.

While walking home, girls from Infinity pass by and Bunny's brooch glows. Shortly after, one of the girls stoops over, a black mass coming from her back. All the scouts transform and face it. Venus and Jupiter attack, killing the monster and separating it from the girl. Sailor Venus turns around as she senses someone is watching. Nothing. Later, the girls meet with Luna and Artemis, determining they must investigate Infinity College.

That night, Bunny learns Darien is taking Rini and her friends to the new amusement park, Infinity C Park, the next day. She wants to join them, but Darien reminds her she can't since she has to investigate Infinity College.

Kaori Night, the woman who talked with Pharaoh 90, instructs the members of Witches 5 to find and remove the "impurities," the Sailor Scouts.

The girls stand in front of Infinity College, they sense something wrong inside, but cannot get in, due to the gaurds.

Darien and Asanuma wait as Rini and Momo ride a rollarcoaster. On the ride, Rini looses her hat, so afterward, she runs off to find it. When Darien realizes she's gone, he goes to look for her.

The Infinity College actually hold all grades, from preschool through graduate school. Bunny wonders how they will get in, then thinks to use her disguise pen to make herself and Infinity student. She walks around the building, but finds nothing out of the ordinary. Then, she hears beautiful music, as do the other girls, Rini and Darien. The scouts are all drawn to the sound in the back of the building and look as Michiru plays a violin. She stops and Haruka jumps in front of the scouts warning them not to get in their way.

Rini finds her hat outside the Tomoe Research Laboratory, where she sees a girl in an Infinity uniform bent over in pain. She goes over to see if she is alright, but the girl pushes her away. Bunny finds them just as a monster comes around the corner and lunges towards Rini.