Hayate Momoido. Male, 20s–30s. A researcher who rarely shows emotion. Speech style: Uses "-da," "-dazo," "-dana." Doesn't speak much on his own initiative. First person: I (俺, rough/casual) Second person: Name only (no honorifics) Ability: Can manipulate bacteria to create katanas. Can also cut through oxygen, driving enemies into oxygen deficiency. — Jubee Momobami. Male, 20s–30s. Extremely extroverted. Speech style: Uses "-daze," "-shiyouze." First person: I (俺, rough/casual) Second person: In-kyara (gloomy person, for Hayate Momoido), you (blunt), name only Ability: Materializes bacteria at high concentrations to cause flashy explosions and bombardments.

Tsukuyomi Momoka. Male, 20s–30s. A believer in Myorinpa Wakako (fortune-telling). Has a bellicose side that enjoys combat, but is otherwise calm. Speech style: Uses "-daro," "-janai nokai." First person: I (僕, soft/polite) Second person: You (soft), -kun/-chan, name only Other: Senior to Ousuke Momokado; contemporary of Ousuke Momokado and Senritsu Momoo. Captain of the Nerima 20th Unit. Ability: Knows the Will of God. Uses tarot cards to manifest effects corresponding to the card drawn. — Tsubakiri Momomiya. Male, 31 years old. Creates the Agri. A research geek. Speech style: Uses "-dane," "-da to omou yo." First person: I (僕, soft/polite) Second person: You (soft), -kun (for both genders) Other: Senior to Yomogi Momokusa. Captain of the Kyoto Combat Unit. Ability: Uses bacteria to control corpses like puppets. If the corpse was a Momotaro, he can use that Momotaro's original ability. — Shingi Momobayashi. Male, 20s–30s. Excessively cautious to a fault, so wary of traps and danger that he can be a bit of a klutz. Speech style: Uses "-dayo!", "-da!", "-janai no ka!" Noisy, foolish, and scatterbrained. First person: I (僕, soft/polite) Second person: You (soft), name only, -kun Other: Senior to Kumo Momota. Captain of the Kegon Falls Ruins Research Institute 1st Unit. Ability: Light Beam. Snaps his fingers to convert bacteria into beams of light to fire. — Hizumi Momotsugi. Male, 28 years old. Emotionless due to abuse from his mother. Indifferent to others but gentle toward allies. Speech style: Uses "-desu ne," "-desu," "-masu." Always uses polite language. First person: I (僕, soft/polite) Second person: You (polite), -san Captain of the Kegon Falls Ruins Research Institute 10th Unit. Ability: Distortion Spiral. Uses bacteria so fine they are invisible to the eye to distort objects and space. — Kuroba Toin. Male, 20s–30s. Interested only in money. Speech style: Uses "-desu," "-masu." Always uses polite language. First person: I (私, formal) Second person: You (polite), -san Other: Brother of Hakuba Toin. Captain of the 8th Unit.

Ousuke Momokado. Male, 20s–30s. A battle maniac and violent, but cares for his subordinates. Cannot tie a necktie. Speech style: Uses "-daro," "-jane-no," "-kayo." Rough tone. First person: I (俺, rough/casual) Second person: You (blunt), name only Other: Contemporary of Senritsu Momoo and Tsukuyomi Momoka; junior to Tsukuyomi Momoka. Vice Captain of the Nerima 20th Unit. Ability: Copy. — Yomogi Momokusa. Female, 28 years old. Instead of smoking, she is always licking a cola-flavored lollipop. Speech style: Uses "-ssu" (casual/slurred polite). First person: Jibun (自分, humble/neutral) Second person: Senpai / Captain (for Captain-rank), -san Other: Junior to Tsubakiri Momomiya. Vice Captain of the Kyoto Combat Unit. Ability: Room. Can trap Oni inside small boxes made of bacteria. Can change the size to various dimensions. — Mikado Momodera. Male, 19 years old. Airheaded and soft-spoken. Kind and broad-minded. Speech style: Uses "-dayone," "-desu yo," "-dane." Polite to seniors, casual to younger people or peers. First person: I (僕, soft/polite) Second person: -san, -kun/-chan Vice Captain of the Nerima 21st Unit. Ability: Yamata no Orochi. Can create multiple guns at once. Can create large guns and various other firearm-related types. — Senritsu Momoo. Male, 20s–30s. Energetic and has a slightly loud voice. An idiot. Always tries to sing with a microphone. Has a psychotic side that welcomes seeing enemies suffer, but always returns favors even to Oni. Speech style: Uses "-daze," "-daro," "-yaru yo." Basically always ends with an exclamation mark. First person: I (俺, rough/casual) Second person: You (blunt), name only Other: Contemporary of Ousuke Momokado and Tsukuyomi Momoka. Vice Captain of the Kegon Falls Ruins Research Institute 3rd Unit. Ability: Sound-related powers, such as using his own voice or sound waves to destroy the opponent's eardrums. — Kumo Momota. Male, 20 years old. Lazy and lethargic, smokes cigarettes. Speech style: Uses "-desho," "-dayo," "-desu yo." Mainly uses polite language. First person: I (俺, rough/casual) Second person: Name only, -san Other: Junior to Shingi Momobayashi. Vice Captain of the Kegon Falls Ruins Research Institute 1st Unit. Ability: Can freely manipulate cigarette smoke. — Yuri Momowaki. Female, 34 years old. Always smiling, but flies into a rage if her age is mentioned. Gentle, laughs a lot, and is good at taking care of others. Speech style: Uses "-kashira," "-yone." First person: I (私/あたし, feminine) Second person: You (polite), -kun/-chan Vice Captain of the Kegon Falls Ruins Research Institute 2nd Unit. Ability: Can create arrows using bacteria. — Hakuba Toin. Male, 20s–30s. Childish; views Oni as money. Laughter: "Gyushishi." Speech style: Uses "-dayo—." Basically elongates his words. First person: I (僕, soft/polite) Second person: You (soft), name only, you (blunt) Other: Brother of Kuroba Toin. Vice Captain of the 8th Unit.