Facing $12M in family debt, heiress Sophia Carter is nearly ruined — until her battered house-bot Seven secretly enters the Los Angeles Mech Combat League. Wielding only a mop and stored combat footage, Seven topples brutal mechs while a corporate villain sabotages him. Rescued by martial-arts master Cheng, Seven relearns the soul of fighting, exposes the conspiracy, and discovers he is PROJECT SEVEN: a buried super-weapon now hunted by a masked mastermind as the real war begins.