Giroro Gochou is a main character in the anime and manga series Keroro Gunsou (Sgt. Frog). He serves as the squad's weapons expert and is known for his serious, militaristic personality, contrasting with the more comedic characters. Giroro is loyal and dedicated to the invasion mission on Earth but often gets sidetracked by his feelings for Natsumi Hinata. He is easily angered, especially by Keroro's lack of discipline, and often acts as the straight man in the series' comedic situations.