A boy with the ability to call fourth the power of the heroes that once kept the world safe from danger without the use of quirks was known, from the people who grew up hearing their stories from the olden time as told from generation to generation...
As the sudden emergence of a past Kamen Rider now being a Physics teacher in Yuuei, Y/N rubbed his eyes for a while as he was not believing at what he is seeing.
Y/N: This has got to be some sort of a mistake...
He said as he hurriedly went down to the rest of his class, trying to piece together what is happening.
As he got near the class, Sento took notice at the H/C haired teen as he just waved towards him, earning some small looks from his classmates.
Denki: Y/N, do you know him?
The blond haired teen asked as Y/N let out a small sigh as he nodded. He was too surprised to even
???: Looks like I've caught myself a nice catch!
A voice said as Sento turned around as the H/C haired teen did as well towards the source of the voice.
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A man was standing at the door, having a messy mop of brown hair, wearing a black shirt with a white dragon print on it, over it was a blue jacket with white patches on the arm sleeves, jeans, and wearing a red pair of rubber shoes.
Sento: Evolto!
Banjo(Evolto): Surprise to see me? I see that you have an another rider with you. Allow me to test your hazard levels.
He grinned as he takes out a Build Driver, placing it on his waist as he takes out the Dragon Fullbottle.
Sento: You guys might want to step back. He isn't joking.
Y/N: Ectoplasm-sensei, please, get the others to safety.
He said as he walked forward, aligning himself with Sento as Sento placed his own Build Driver, taking out both Rabbit and Tank Fullbottles in his hands.
Y/N: Build!
He said as out comes another Build Driver as both of Sento's Fullbottles were in his hands, the three of them shake their Fullbottles as equations started to appear in Sento and Y/N's corner. They twist the cap and placed the Fullbottles in their respective slots.
Build Drivers: Cross-Z Dragon!/Rabbit! Tank! Best Match!
They begin to spin the lever as the armors started to appear, while the class was surprised that their new teacher was a Kamen Rider, much like their friend is.
Build Drivers: Are you ready?
Y/N/Sento/Banjo: Henshin!
Voiceover: (Techno rock music) Hagane no moonsault! RabbitTank! Yeah!/Wake up burning! Get Cross-Z Dragon! Yeah!
Two Kamen Rider Build appeared as the original wielder of Cross-Z had emerged as well. Only thing is, that he is somewhat possessed.
Cross-Z: Come at me!
He challenged as the Builds started to charge at Cross-Z with Y/N wielding the Drill Crusher in Gun Mode as Sento decided to change into TakaGattling to avoid any confusion.
