The Rolling Girls’ next mission comes from a letter asking for help bringing peace to “Mie-Aichi”, also known as “Aichi-Mie”, a new country made up of those two very different prefectures united around the fact that both claim to be the birthplace of a certain kind of regional food, but both former prefectures have vigilante groups that constantly battle each other, while all the public roads double as racing circuits.
In the midst of such a large conflict is Uotora Himeko, prodigal daughter of Aichi’s master carpenter, the one repsonsible for the city’s famous “shachihoko” fish sculptures, guardian gods that protect the roofs of buildings from fire.
Himeko is back after getting bored with playing around on the road, just when every shachihoko in town explodes. The Mie Motors vigilantes are suspected, and while there isn’t proof, the Aichi tenmusus want to duel them on the circuit to determine who rules the country once and for all.
The Tenmusus’ captain, a tough dandy and cafe owner, tries to keep the peace, but the young pups are getting restless, and he has to rely on his absurd brute strength to keep the Mie Motors’ vice-captain at bay (in a running gag the vice-captain is constantly revving his engine, so you can never clearly hear what he’s saying). Negotiating peace seems like a tall order for Nozomi & Co.
The Old Aichi townsfolk, however, are more concerned with getting all the shachihoko repaired. The only problem is, Himeko’s stubborn dad claims he’s lost all feeling in his arm and is thus no longer able to create. This puts the onus on the long-estranged daughter to do the work. When she was a little girl, she wanted nothing more than to follow in her father’s footsteps, but girls grow up and the paths they want to take change.
It’s a tough spot for Himeko, made worse when she learns her dad’s arm is actually fine, and that he was faking it to make her take on the responsibility. She pays him back with words harsh enough that he slaps her, an action he instantly regrets but only pushes her away further.
Meanwhile, the Rolling Girls have determined that Suzuka Tomoki, the captain of Mie Motors, reigning circuit champion, and only “Bike Taxi” in town, sent them the letter asking for help, in Himeko’s name (the fact he called the country Mie-Aichi instead of Aichi-Mie gave it away).
But when he zooms by to drop off a fare, the girls don’t have a change to catch his attention before it’s taken away by his loose-cannon vice captain, itching for a battle. Tomoki won’t allow one, but when a squad of Tenmusus arrives, they clash with vice-captain’s squad anyway.
In all of this, Tomoki and Himeko both seem to be caught up in things far bigger than they are. But these two share a past, and perhaps they share a future in restoring peace to their joint country.
After all, Tomoki seems to have the equivalent of a moonlight stone, and while shachihoko sculptures are merely symbols of peace, symbols are powerful things. Himeko may be rusty, but she and Tomoki may be the ones who help cooler heads prevail over hot ones. But first…dinner!