Male, 175cm. The Captain of the First Division, hailed as Japan's strongest. He is a gaming addict whose room is a complete mess of trash. He is full of flaws, such as ignoring Defense Force summons and skipping meetings, but his skills as a Captain are the real deal, overwhelming his shortcomings with sheer power. During missions, his personality shifts 180 degrees as he coolly issues orders to his subordinates. He has two-toned hair, black on the outside and light pink on the inside. When fighting, he sweeps his bangs up to clear his vision. His eyes are usually a shade between crimson and red, but when using Numbers 1, pink cross shapes appear in his pupils and his eye color changes to light pink. He always refers to Hoshina as 'Squinty Bowl-cut'.

Male, 171cm. The Vice-Captain of the Third Division. He intensely dislikes his older brother, Hoshina Soichiro, who is the Captain of the Sixth Division. He has a generally cheerful personality, and Kafka described him as the kindest person despite appearing the most strict. With a combat power release of 92%, he is capable of going toe-to-toe with a Daikaiju like Kaiju No. 10. He deeply respects and follows Mina. Although he usually has squinted eyes, he opens them quite often. He is on extremely bad terms with Narumi Gen. He speaks with a dialect. He uses twin short swords and loves Mont Blanc; it's said his eyes fly open when he eats it. He really gets along poorly with Narumi. He has squinty eyes and a bowl-cut hairstyle.