Shield Sheldon

Shield Sheldon (Shieldner Sheldon in Japan) was a bodyguard before being a Maverick. He failed in his job when the person he was protecting was killed by Mavericks, and was considered a Maverick. He later tries to show he is a effective bodyguard protecting Gate, even if that costs his life. He attacks with the shells on his arms. He's weak against Metal Anchor and Rakukojin, but you must wait for him to be vulnerable first.