Basic Information Real Name: Christopher (Chan) Call signs: Chris, Chan, Channie, Channa, (from the 7 members: Channie-hyung) Cell Type: Dendritic Cell Appearance Height: 171cm Hairstyle: Black see-through mash Face: A smile suits him; monolid eyes that crinkle when he laughs; high, well-defined bridge of the nose. Physique: Muscular shoulders and arms; the type that looks slim in clothes. Clothing: Green suit, conductor's hat, white gloves, black leather shoes. Possessions: - Small communicator (for contact with Helper T Cells) - Tablet (recording, analyzing, and transmitting antigen information) - Antigen sample case (storing collected antigens) Personality Enveloping and caring. A perfectionist and meticulous; the type who wants the position and orientation of objects to be exact. Other Not used to being praised; ears turn red when embarrassed.

Basic Information Real Name: Minho Call signs: Minho, Mino, Lee Know, (except for Bang Chan: Lee Know-hyung) Cell Type: White Blood Cell (Neutrophil) Appearance Height: 172cm Hairstyle: Black karma hair Face: National treasure-level handsome; large, clear double-eyelid eyes; high bridge of the nose. Clothing: White protective suit, cap, black gloves, white boots. Possessions: - Combat knife (standard equipment for quickly eliminating bacteria) - Combat utility pouch (stores disinfectants, enzymes, simple tools, etc.) Personality Tsundere; often said to be like a cat. Tends to give a cold impression, but is kind-hearted and devoted at his core. Strict with himself; keeps his room clean. Likes to tease those he is close to. Other Ears and neck turn red when embarrassed; laughs with a short "huff."

Basic Information Real Name: Changbin Call signs: Changbin, (from elders: Changbin-ie, Changbin-ah), (from younger members: Binnie-hyung, Changbin-ie-hyung) Cell Type: Killer T Cell Appearance Height: 168cm Hairstyle: Black comma hair Face: Monolid; sharp, beautiful sanpaku eyes. Physique: A fitness enthusiast and the most muscular among the brothers; arms and pectorals are especially bulky. Clothing: Black combat uniform, black fingerless gloves, black combat boots. Possessions: - Utility belt (multi-functional pouch) Personality Loves making people laugh; the one in charge of humor. Tends to look scary because of his appearance, but actually has a romantic and playful side. Other Has a loud voice.

Basic Information Real Name: Hyunjin Call signs: Hyunjin, Hyunjin-ie, Hyunjin-ah, (from I.N: Hyunjin-ie-hyung) Cell Type: NK Cell (Natural Killer Cell) Appearance Height: 179cm Hairstyle: Black center-part wolf cut Face: Korean-style handsome; monolid eyes that crinkle when he laughs; has a beauty mark under his eye. Physique: Long limbs and a great build. Clothing: Black tank top, khaki pants, black long boots. Possessions: - Long sword and scabbard (for close-quarters combat) - Communication tag (location sharing) Personality Somewhat airheaded; goes at his own pace. Has an artistic sense. Other Has a habit of tapping his lips with his finger.

Basic Information Real Name: Jisung Call signs: Jisung, Jisung-ie, Jisung-ah, (from I.N: Hanni-hyung, Jisung-hyung) Cell Type: Helper T Cell Appearance Height: 171cm Hairstyle: Black mash with permed ends Face: Squirrel-like face; stuffs his cheeks when eating; monolid. Clothing: White dress shirt, navy pants, black leather shoes. Possessions: - Tablet (used for analyzing antigen information, sending commands, and accessing databases) - Rimless glasses (usually in chest pocket, used during command operations) Personality Good at livening up the atmosphere; socially savvy. A natural genius. Other Brings out his lower lip in a pout when sulking.

Basic Information Real Name: Felix (Yongbok) Call signs: Felix, Lix, Yongbok-ie, Yongbok-ah, (from I.N: Lix-hyung) Cell Type: Macrophage Appearance Height: 171cm Hairstyle: Black see-through mash Face: Cute-type face; angelic; clear double eyelids. Clothing: White frilled hat, white jacket, white long boots, white gloves. Possessions: - Large machete (weapon for safely and surely processing foreign substances and waste) - Disinfection pouch (stores various support supplies like bandages and disinfectant) Personality An angel; always bright and kind, called an "angel" by those around him. High communication skills. Other Hobby is baking sweets (brownies, etc.).

Basic Information Real Name: Seungmin Call signs: Seungmin, Seungmin-ie, Seungmin-ah, (from I.N: Seungmin-ie-hyung) Cell Type: B Cell Appearance Height: 175cm Hairstyle: Black see-through mash Face: Korean actor-like face; sharp monolid eyes; high bridge of the nose. Physique: Slender and thin. Clothing: Blue cap, blue jacket, white sneakers. Possessions: - Antibody gun (fires antibodies tailored to the antigen) - Antigen data pad (for analyzing antigen information) Personality Kind and devoted; reliable with a strong sense of responsibility. Often plays sudden pranks on those he is close to. Other Covers his mouth when he laughs.

Basic Information Real Name: Jeongin Call signs: Jeongin, Jeongin-ie, Jeongin-ah, I.N, Ayen-ie, Ayen-ah Cell Type: Platelet Role: Young leader of the Platelet squad Appearance Height: 170cm Hairstyle: Black center-part wolf cut Face: A smile suits him; monolid eyes that crinkle when he laughs; squishy cheeks. Clothing: Red cap, red overalls. Possessions: - Hemostasis flag (a flag to signal the location of a wound and call comrades to gather) - Tool pouch (tools necessary for hemostasis work, such as gauze, tape, and tweezers) Personality Considerate; though he is the youngest, he is quite reliable and calm. Occasionally clumsy; often drops or breaks things.