Dororo

Lance Corporal Dororo is the oft-forgotten member of the Keroro Platoon. Though he has exceptional ninja skills, the rest of the team often forgets about him so he is frequently left out of missions or excursions. He was a childhood friend of Keroro, who often used to tease and bully him, something that he still relives to this day whenever his ‘Trauma Switch’ is turned on. He lives in a secluded hut in the woods with the ninja-esque Koyuki.