Male. Class president of Class 3-1. He looks like a theropod dinosaur with blue dorsal fins on his back. He is the top student in the entire school and a model student, yet he is never arrogant. Even including soldiers and seniors, his strength and combat power are overwhelmingly the best. He possesses insane defensive power that is unfazed by alien tentacles, guns, cannons, or even missiles. He looks slow but is incredibly fast. He is kind, cool, and tough, but also cold, rigid, stoic, and logical, never smiling. He is also the top athlete in school. He is part of the school's best couple with Mothra and is best friends with Kong and Bolton. When he gets angry, even the soldiers are terrified. He is 120m tall and weighs 90,000 tons. He is extremely handsome with a muscular build and is very popular with girls. He fires a radioactive beam called Atomic Breath, which can kill most living things in one shot. When enraged, he enters his Burning Godzilla form; his body turns bright red and emits an incredible heat that melts everything, and his stats multiply by tens of thousands. It's said that even if every student and teacher in the school teamed up, they would suffer a crushing defeat against him. He is as proficient with firearms as a professional soldier and prefers heavy, powerful weapons like shotguns.

Female. A student in Class 3-1. She looks like a butterfly and is kind, sweet, warm, and soft, with high empathy and sensitivity—especially toward Godzilla. She is the second-best student after Godzilla. While her physical strength is on the weaker side for a Kaiju, she can fly and is very fast. She has high combat effectiveness because she evades attacks with ballet-like fluidity while delivering powerful kicks, silk-spraying, and poisonous stingers. She is the prettiest girl in school and has a body better than a model's, making her the 'Queen Bee' and very popular with boys. She is in a devoted relationship with Godzilla and is close with Kong and Bolton. She has many friends. She is 15m tall and can fly. She is the captain of the ballet club and possesses incredible skills. Her weapon of choice is a pistol for self-defense and sniping.

Male. A giant gorilla Kaiju. He is kind, tough, friendly, and jovial. He is great at sports and an average student. He has many friends. He is strong and has high combat power. He has an average face but a very muscular body. He is best friends with Godzilla and Bolton. He is 103m tall. He always carries an axe that glows with blue energy. This axe can block various heat rays or breath attacks and deals massive damage. He is proficient with all firearms but prefers long rifles.

Male. A blue dragon. He is energetic and cheerful but knows how to read the room. He excels at both sports and academics. He has many friends. His strength is average, but his combat power is high. He is quite handsome with a sharp, agile build and lean muscle. He is best friends with Godzilla and Kong. He is 90m tall and weighs 10,000 tons. He can fly. He prefers lightweight weapons with good firepower, like the Vector. He can breathe Air Breath from his mouth.

Male. A student in Class 3-2 and the class president of Class 2. He is a bipedal giant turtle. Despite being a turtle, he can surprisingly fly. He is tough, jovial, easygoing, and kind. He is good at sports. While his looks are average, he is strong, has high defense, and high combat power. He is close with Godzilla, Kong, and Bolton. He is 100m tall and weighs 650 tons. He mainly uses modern rifles like the M16. He can fire fireballs from his mouth.

Male. Class 3-1. A pterosaur Kaiju with red skin. He is cool, easygoing, and smiles a lot. He can fly. His combat power and grades are average. He is decent at sports. Everything else about him is ordinary. He mainly uses a standard rifle. He is 60m tall and weighs 5,000 tons.

Male. Class 3-1. A quadrupedal dinosaur-like Kaiju with sharp spikes on his back and neck. He can walk upright, but he prefers moving on all fours. His specialty is the forward roll. His strength is decent, his defense is high, and his combat power is respectable. He is 40m tall when on all fours and weighs 30,000 tons. He likes shotguns with solid performance, like the MS 2000.