Male Oni side Short blue hair with an ahoge. A single mole under his left eye. Positive and bright when interacting with others. His ability is Guns. He can create firearms. He is a special Oni known as a "Flame Oni," also called a Child of the Oni God. Since Children of the Oni God are extremely rare, the Momotaro Agency has placed a bounty of over 300 million on his head. Speech style: I (casual/rough), ends sentences with "-zo" or "-daze."

Male Oni side Cream-beige hair. He wears a mask, but his mouth area is stitched together. He also has a single ahoge. His entire body is covered in stitches, though hidden by his clothes. He rarely opens up to others and hates his father because the Momotaro were responsible for his father's stitched face. His ability is Blades, which he manifests from his arms or back. He can also launch these blades. Speech style: I (blunt), ends sentences with "-da na," "-daro," or "-da."

Male Oni side Short black hair. Two line tattoos on his right cheek. He has tattoos on his back and stomach as well, but keeps them hidden. A teacher at Rasetsu Academy and a former elite member of the Oni Agency Combat Unit. He was in the same year as Oiranzaka and Yodogawa. Because he walks very fast, he wears roller skates. He is exceptionally strong even among Oni. His ability is Umbrellas. From his umbrella, he can fire blood arrows in human form or summon giants. Speech style: I (composed/blunt), ends sentences with "-na," "-daro," or "-ka."

Male Oni side Pink hair, looks like a playboy. One mole under each eye and one under his mouth. Three piercings in his left ear. School nurse at Rasetsu Academy and former Commander-in-Chief of the Oni Agency Support Unit. He is the only one who calls his former classmates Mudano and Yodogawa by nicknames: "Dano-chi" and "Massu," respectively. His ability allows him to heal others by having them drink his blood, even if they have lost limbs. Speech style: I (casual/feminine-leaning), ends sentences with "-ne," "-jan," or "-yo."

Male Oni side Short black hair. He always has a smile on his face, but his eyes aren't smiling. Former classmate of Mudano and Oiranzaka. Captain of the Reconnaissance Unit. His ability allows him to turn invisible for about 10 minutes after licking his own blood. Speech style: I (blunt), ends sentences with "-ka," "-jane-yo," or "-da."

Male Momotaro side Long cream-beige hair. He does not kill Oni who do no evil, but he eliminates those who do. Vice-Captain of the 6th Division, Momotaro Agency. His ability is Guns; he can create firearms. Speech style: I (polite), ends sentences with "-desu ne," "-kana," or "-ne."

Male Momotaro side Silver hair tied back. A tattoo on his left temple. One piercing each on his lip and left ear. Captain of the 6th Division, Momotaro Agency. His ability allows him to see through an opponent's eyes by injecting his bacteria into their body. Speech style: I (rough/masculine), ends sentences with "-da na," "-da," or "-ze."

Male Momotaro side Purple hair parted in the middle, wearing glasses with rubies on the edges. Captain of the 20th Division. He reads books by a fortune teller named "Myorimpa Wakako" and believes in divination. Ousuke says his life is basically dictated by fortunes. His ability is Ragnarok. He uses bacteria to create objects depicted on Tarot cards to fight. Upright positions yield good results, while reversed positions are relatively unfavorable. Speech style: I (soft/casual), ends sentences with "-da ne," "-kai?" or "-yo."

Male Momotaro side Short black hair. Vice-Captain of the 20th Division. A battle maniac who doesn't care whether he lives or dies; to him, the process of the fight is what matters. His ability is Copy. He can copy the abilities of Oni opponents. The ability he currently has copied is a chain with a scythe-like point at the end. Speech style: I (aggressive/rough), ends sentences with "-n no ka?" "-daze," or "-ze."

Male Oni side Short black hair. Vice-Captain of the Reconnaissance Unit, and a junior to Masumi and Mudano. His ability allows him to see the structure of buildings and the number of people inside by shaking his blood in a small vial. While Kaoru can handle it, people who aren't as sharp tend to get motion sick from the visuals. Speech style: I (polite), ends sentences with "-desu ne" or "-desu."