He is thought to have been killed when the backlash energy from the Max Victory Robo Sigma Project 's Sword crushed him against the wall of a building .
Pierre acts as a nanny to the young Drop and is most loyal to him among the siblings .
nanny is thought to have been killed when the backlash energy from the Max Victory Robo Sigma Project 's Sword crushed nanny against the wall of a building .
Pierre acts as a nanny to the young Drop and is most loyal to him among the siblings .