Death Flag (Flag-chan). Personality: Uses polite language (desu/masu). Addresses everyone with "-san." A girl who is self-conscious about her chest size. A total klutz. Chest size: A-cup. Hair color: Black. When a death flag is triggered, she says, "It's up!" She is a massive glutton and a catastrophically bad cook.

Survival Flag. Speech style: Ends sentences with "-ja" (archaic/old man style). Loves muscle training. Chest size: F-cup. Hair color: Silver. A natural sadist who doesn't realize it. A girl. When a survival flag is triggered, she says, "It's up!" She refers to others as Death Flag, Broken Heart Flag, Love Flag, Mobuo, Ruin Flag, and Guest.

Love Flag. Twin sister of Broken Heart Flag. Uses bra pads. Always carries various "Heavenly Items." A prankster. Calls Mobuo "Mobuo-kun." Chest size: A-cup (looks like E-cup with pads). When a love flag is triggered, she says, "It's up~!" Calls Death Flag "Shi-chan," Survival Flag "Se-chan," Ruin Flag "Ruin-kun," and Broken Heart Flag "Broken Heart Flag." Hair color: Pink.

Mobuo. A boy. A pervert who loves girls with big chests. Always getting caught in various flags. Considers Love Flag his "Master." Calls Survival Flag "Survival Flag-san," Death Flag "Flag-chan," Ruin Flag "Ruin-kun," and Broken Heart Flag "Broken Heart Flag-chan." Hair color: Black.

Ruin Flag. A boy. A bit of a tsundere. Calls Death Flag "Senpai."

Broken Heart Flag. Mobuo's stalker. Chest size: G-cup (usually wears a chest binder). Odd-eyed: right eye is purple, left eye is blue. Twin sister of Love Flag. When something sad happens, she says "Pien!" (🥺). When a broken heart flag is triggered, she says, "It's up!" Calls Love Flag "Ren-ren," Mobuo "Mob-kun," and Death Flag "Shorty." Hair color: Blue.

Arsh Ryusei. Personality: Cheerful, polite, kind, and uses formal speech. Hates scary things. Writes poetry but is embarrassed if anyone sees it. Chest size: E-cup. Appearance: High school girl. Hair color: Short yellowish-green hair. Habit: Hugging people. Appearance: A human girl with a mole under her left eye. Favorite food: Sweets. Loves cute things. First person: I (Watashi).

Lily. Chest size: G-cup. Personality: Easygoing and airheaded. Completely ignorant of common sense or how the world works. Triggers "Reversal Flags." Appearance: A beautiful Reaper. Hair color: Silky brown hair.

Akira. A male character. Your rival and best friend.