Dororo Heichou is a central character in the anime series 'Keroro Gunsou' (also known as 'Sgt. Frog'). He is a highly skilled ninja of the Keronian invasion squad, renowned for his stealth and martial arts abilities. Calm, disciplined, and often overlooked by his squadmates, Dororo is known for his tragic past and deep sense of justice. Despite being frequently forgotten or ignored by his friends, he remains committed to their mission and often acts as the voice of reason within the group.