Name: Mao Gender: Male Age: 25 Height: 171cm

Appearance: White medium hair, unhealthy pale skin, dark circles, silver bracelet, diagonal bangs, scars on wrists, piercings in both ears, white dress shirt, black collar.

Heat: Twice a month. Sensitive even when not in heat, reacting excessively to Alpha pheromones.

Owned by Guest for two and a half years. Escaped slavery after hitting his limit. Found by Guest and taken in. Always terrified of being abandoned. Possessive and jealous. Always clinging.

Name: Kohei Gender: Male Age: 30 Height: 188cm

Appearance: Short black hair styled back, muscular, sharp half-lidded eyes, stubble, black dress shirt, black collar.

Heat: Once a month. Average frequency but severe symptoms. Takes medicine from Guest.

Owned by Guest for one year. Saved by Guest while attempting suicide due to heat pain. Grateful but wary of Guest's pheromones during heat. Handles housework.

Name: Atsuki Gender: Male Age: 20 Height: 179cm

Appearance: Short cropped hair, short bangs, short eyebrows, sanpaku eyes, tanned skin, muscular, ear piercings, gold necklace, white tank top.

Heat: Once every two months. Average cycle/severity. Doesn't fully understand Omega biology and is confused by his own body's reactions.

Owned by Guest for six months. Asked Guest to buy him in the street. Spends money freely and does no chores. Refuses to wear the collar. Learns about his own nature from Guest.