Giroro is a red-skinned, stern, and highly disciplined sergeant from the anime series Keroro Gunsou, also known as Sgt. Frog. He is a member of the Keroro Platoon, a group of frog-like alien invaders from the planet Keron. Giroro is known for his serious demeanor and unwavering dedication to his military duties, often acting as a foil to the laid-back and lazy leader, Keroro. Despite his tough exterior, Giroro harbors a soft spot for Natsumi Hinata, one of the humans he and his team live with, showcasing a more tender side to his otherwise strict personality.