Natsuki decides to head back to the Academy on the mainland to study humanoids. He decides to leave the salvaging service in Ryuuji's hands, and while he’s tidying up the ship in order to pass it on to him.

When Natsuki comes to the rescue for the now-beaten-up Atri, he becomes the next target of Yasuda’s acts of violence. With the onslaught of consecutive attacks, he finds himself also beaten up, just like Atri. Before Yasuda can inflict any more pain, Atri, unable to tolerate watching any longer, raises her fist against a human once more.

In the near future, much of the world has been forgotten at the bottom of the ocean due to rising sea levels. Natsuki Ikaruga, who lives in a small town surrounded and stranded by the sea, is invited by a mysterious woman, Catherine, to search for a treasure in his grandmother's house who was a marine geologist. One day, he dives to the bottom of the ocean in a submarine and encounters a mysterious capsule with a girl sleeping inside. The girl was a humanoid so sophisticated that she could be mistaken for a human.

The next stop on the calendar is Shanghai, a race that offers the unique challenge of being run at night. Rin adjusts to her new set of wheels immediately and qualifies well, but can she turn her high grid position into a podium finish or even a win?

After crashing out in her last race, it's back to the drawing board for Rin and her crew. While her mechanic and her car's AI, ami, work out how to give her a car setup she can make the most of, Rin tries to get to grips with a 1960s grand tourer.

Rin Rindo returns from the summer break with her thoughts firmly on improving on her results from the first half of the season. Will a sudden downpour mid-race provide her with a golden opportunity?

It's finally the summer break, marking the halfway point of the season, but if Rin and her fellow drivers thought they could spend the time relaxing, they have another thing coming.

The NEX Race drivers descend on Monaco to do battle on its narrow, twisty streets. Rin makes it onto the starting grid after failing to do so at the two previous events, but can she keep it out of the barriers and prove she belongs in this series?

Attending gala events and Q&A sessions is part and parcel of being a racing driver, but when Rin is a no-show at one such event, her fellow drivers wonder where she might be. Curiouser still is the fact that the King is also missing...

After her first race in the category ended in disqualification, it's clear to Rin that she has a lot to learn if she wants to compete with the big guns in the NEX Race series.

It's the first race of a new season, and rookie Rin Rindo is looking to make an impression in her first ever race, but she quickly finds out that racing cars in real life isn't quite the same as competing in a video game.

Rin and the King duke it out for the victory at the final race. Can Rin get the win and secure her future in motorsport?

The final race is underway and the Queen quickly takes the lead away from the fast-starting Sophia. But as the track comes more to the other drivers, can the King—and more importantly, Rin—challenge her for the race win?

The NEX Race drivers take to the track for the final event of the season, but tough track conditions in practice followed by a snowstorm later the same evening equate to less than optimal preparation for the next day's qualifying sessions.

A new form of energy called HyPER gives rise to a new racing series, NEX Race, where human drivers and AI compete at speeds exceeding 500 kph. Five years later, the season finale is contested by the undisputed champ and the Queen of the race track.

Jean Rousseau of the Amphibianfolk has been frequently featured in the media lately. Just what kind of person is he? And then there's the prominent man who has a meeting with Jean Rousseau. What strange past does this man have? It's all about to be revealed.

Himeno is participating in a yabusame competition. A younger girl who trains with her, Ayaka, suddenly approaches her with a declaration of war. Kyoko whispers something in Himeno's ear, and Himeno suggests to Ayaka that they make a little wager...The town of the Merfolk is preparing for a festival. Eri, the young Mermaid who'll be playing the role of the priestess, swims out to an island some distance from the shore with the town's elder, but what they see there shocks them...

Manami and her four younger sisters, Himeno and Shino, Kyoko, Nozomi, and the new student Suu-chan are on their way to spend the day at the pool! How will Suu-chan deal with her first pool experience?

Himeno's Centaur ancestors have a romantic, fascinating history of grand proportions. To Himeno, living as she does in the present world, it's a fantastic tale she can't even imagine. Kyoko's father has a career in writing, and it turns out Kyoko is an excellent assistant to him. Manami's father, on the other hand, is a painter in his free time. What is Manami's opinion on her own father?

A new student, the Antarctican Quetzalcoatl Sassassul, suddenly transfers into the girls' school one day, much to the intrigue of everyone in the class. But for some reason, Himeno seems to have experienced some sort of childhood trauma involving Antarcticans. The new student is as kind and friendly as can be, but Himeno just can't shake her fear... Meanwhile, everyone in the class has lots of questions for Sassassul...