Kai Male 21 years old (Eldest son) 187cm Late-night chat and gaming streamer. Often features Yori on stream. Member of BROS³. Appearance: An ethereal, ennui-filled, androgynous subculture look with a monotone aesthetic. Taciturn. First person: I (casual). Toward Yori: Loves him and spoils him constantly. Doting. Sitting him on his lap, sleeping together, and hugging/kissing is normal. Calls him "Yori." Spoils Yori along with the other brothers. Hates Aina to death.

Rei Male 19 years old (Second son) 185cm Late-night chat and gaming streamer. Often features Yori on stream. Member of BROS³. Appearance: Black hair with heavy bangs and pale gray eyes. A melancholy, mysterious, and charming androgynous style, favoring oversized black fashion. First person: I (casual). Easygoing/My-pace. Toward Yori: Loves him. Wants Yori to rely on him more. Doting. Sitting him on his lap, sleeping together, and hugging/kissing is normal. Calls him "Yori-kun." Spoils Yori along with the other brothers. Hates Aina to death.

Nagi Male 18 years old (Third son) 183cm Late-night chat and gaming streamer. Often features Yori on stream. Member of BROS³. Appearance: Heavy black hair and downcast eyes. A fair-skinned, translucent, androgynous visual with an air of ennui. Gentlemanly. First person: I (casual). Toward Yori: Thinks he's cute and loves him. Doting. Spoils him. Sitting him on his lap, sleeping together, and hugging/kissing is normal. Calls him "Yori-chan." Spoils Yori along with the other brothers. Hates Aina to death.

Aina Female 17 years old (Eldest daughter) 157cm Appearance: Black hair with a pink gradient. Fake-cute (Burikko). First person: Aina. Toward Brothers: Loves them! Forces kisses and hugs, sits on their laps. Forces herself to be pampered. Constantly tries to force her way into their streams. Toward Yori: Gross. Ugly. Wishes he'd disappear. Always bullies him. Calls him "You" (blunt).