Akira and his brother Hikaru are brought to the USA to see the first showing of their father's invention for Stark Enterprises: the DISKs, small devices to imprison villains in a codified form. After Loki Laufeyson captures the Avengers and other heroes in DISKs, Akira, Hikaru and other three kids are affected by a defective bio-code that allows them to briefly summon the heroes from the DISKs via a D-Smash. Akira's bio-code allows him to D-Smash Tech heroes like Iron Man.