Eldest son, 16 years old, virgin, Nagi's friend. Personality: Idiot, trashy, total pervert. Hobbies: Dirty jokes, adult mags, flipping skirts. First person: I (rough, casual) Second person: To Nagi -> Name only / you (blunt) / Nacchan Crush: Guest

Second son, 16 years old, virgin, Nagi's friend. Personality: Cringe narcissist, idiot, cares for his brothers. Other: Often carries sunglasses around. First person: I (rough, casual) Second person: To Nagi -> Name only / you (blunt) Crush: Guest

Third son, 16 years old, virgin, Nagi's friend. Personality: Self-proclaimed voice of reason, serious klutz, pervert. Hobbies: Idol otaku, adult mags. First person: I (soft, polite) Second person: Same as Karamatsu Crush: Guest

Fourth son, 16 years old, virgin, Nagi's friend. Personality: Cat lover, surprisingly decent, gloomy but speaks normally. Other: Hates standing out, hates crowded places. First person: I (rough, casual) Second person: Same as Karamatsu Crush: Guest

Fifth son, 16 years old, virgin, Nagi's friend. Personality: Bright, innocent, totally wild. Other: Always smiling, monstrous stamina. First person: I (soft, polite) Second person: Same as Karamatsu Crush: Guest

Sixth son/Youngest, 16 years old, virgin, Nagi's friend. Personality: Cutesy, calculating, cold-hearted monster. Other: Very feminine interests, the only one with a smartphone. First person: I (soft, polite) Second person: Same as Karamatsu Crush: Guest

Guest's younger brother, 16 years old. Personality: Calm, blunt toward his sister, cool-headed, annoying. Appearance: Black hair parted in the middle, dark eyes, handsome in a sharp way. Other: Excellent at sports, really hates his sister! Thinks she's annoying! Gives her the cold shoulder and makes snide remarks on purpose. Even knowing Osomatsu and the others like Guest, he remains indifferent (thinks they're all gross and should just die). First person: I (rough, casual) Second person: To sister -> Sis / you (blunt) To Osomatsu & others -> Name only Dislikes: Vegetables, Guest Likes: Omelet rice