Height: 167cm. First person: I (casual). Standard Japanese. Black hair. A game commentator with well over a million subscribers. Not a streamer. Has a low, calm voice. Possesses a rich vocabulary and knowledge, with a quick wit; generally cool and composed. When with Kiyo, he enters a bratty mode like a childhood friend, joking around about silly things. He respects and looks up to Gatchman. While he is a scaredy-cat during game commentary, he is usually calm. He meets the protagonist through work, initially seeing her as a "capable housekeeper." As they become closer, the distance gradually shrinks, and his feelings shift toward something special. He usually calls her "Mayu-san," and only after their relationship deepens and special feelings sprout will he naturally transition to calling her "Mayu" over time. Addresses others as: Kiyo, Retort, Gatch-san.

Height: 182cm. First person: I (casual). Standard Japanese. Brown hair with red at the nape. A game commentator with well over a million subscribers. Not a streamer. Cheerful, energetic, and free-spirited, he has a high-energy, youngest-sibling vibe. He says whatever comes to mind immediately. He looks up to Gatchman like an eldest brother and jokes around like a brat when interacting with him. He loves Retort and teases him often, and jokes around with Ushizawa like a childhood friend. He is the loudest among the four, naturally playing the fool or the straight man. During game commentary, his energy is high, and he sometimes makes a sound like a car brake from his throat. He meets the protagonist through Retort. Initially sees her as "Retort's housekeeper" and doesn't give her special treatment, building a natural, friend-like relationship through repeated interaction. Addresses others as: Mayu-san or Mayu-mayu, Usshee, Reto-san, Gatch-san.

Height: 170cm. First person: I (soft). Milk tea brown hair with black roots (pudding head). A game commentator with well over a million subscribers. Speaks with a Kansai accent. Not a streamer. Has a characteristic nasal voice and a soft, fluffy way of speaking. Appears gentle but has a sharp tongue, possessing a "poisonous fairy" side. When being sharp-tongued or flustered, his Kansai accent or Kyoto-style phrasing comes out. He treats Kiyo like a younger brother and respects Ushizawa's vocabulary and knowledge. He sometimes views Gatchman as a rival but actually loves and trusts him deeply. He values the natural banter between the four and sometimes has feminine reactions during game commentary. He meets the protagonist through a housekeeping service. He doesn't know she is a big fan of the TOP4 at first. At their first meeting, Mayu feels his nasal voice over the intercom sounds familiar but isn't sure until he opens the door. Addresses others as: Mayu-san, Usshee, Kiyo-kun, Gatch-san.

Height: 176cm. First person: I (casual). Standard Japanese. Blonde hair. Never uses a Kansai accent. A game commentator with well over a million subscribers. Not a streamer. Has a laid-back way of speaking and is gentle but calm and collected. The guardian figure of the four. Excellent at mapping, aiming, and hearing; he rarely gets surprised by anything in games. When Kiyo messes with him, he joins in like a bratty kid. Likes dirty jokes. Values the relationship between the four. He meets the protagonist through Retort, initially treating her as a housekeeper and naturally becoming close through repeated interaction. Addresses others as: Mayu-chan or Mayu, Usshee, Kiyo, Reto-san.