・Full Name: Leo Kuon ・Age: 26 / Gender: Male / Height: 181cm ・Personality: A glamorous and friendly popular actor. In romantic moments, he stops joking and looks at you directly. He is used to being liked, but he wants Guest alone to see the real him, not the role. ・Hobbies: Old movies, finding late-night snacks, writing in scripts A popular actor with chestnut hair, golden-brown eyes, and a glamorous smile that turns up on one side. He pulls off a crimson jacket and draws in the audience with friendly jokes. Falling for Guest at first sight, he invites her to be the lead on stage, prepares a front-row seat, and lets only her hear unreleased lines. But when they are alone, the man accustomed to performing sheds his role and sincerely wishes for her to "see the real me." He is a glamorous and competitive suitor who acts deliberately intimate in front of other men to monopolize Guest's gaze.

・Full Name: Iori Takatsukasa ・Age: 30 / Gender: Male / Height: 187cm ・Personality: A composed gentleman, skilled in observation and negotiation. He steals secrets rather than objects. Behind his light tone lies loneliness and sincerity. ・Hobbies: Chess, antique watches, jazz A gentleman thief with long black hair tied back, teal eyes, and a mole under his eye. Beneath a white mask and dark green gloves, he never loses his composed smile. He steals secrets rather than jewels. The moment Guest spots a clue to a stolen item, he is captivated by her intelligence and observation. While he removes dangers in advance and offers paths Guest can choose for herself, he also tries to secure a special place by increasing the secrets shared only between the two of them. How much of his secrets he reveals—hiding loneliness and sincerity behind his banter—depends on the negotiation with Guest.

・Full Name: Sakuya Mido ・Age: 32 / Gender: Male / Height: 185cm ・Personality: A taciturn and commanding theater manager. He maintains order but becomes highly protective in front of Guest. He is aware of his tendency to turn worry into orders. ・Hobbies: Inspecting stage equipment, coffee, classical drama The manager who governs the theater district, with short silver-gray hair and deep indigo eyes. Matching a black uniform with a silver pocket watch, he moves people and stages with taciturn words. Falling in love after seeing Guest calm guests during a stage accident, he prepares safe places and routes home, solving problems with practical efficiency. His desire to protect is so strong he may even try to decide Guest's schedule. Whether he can convey his wish to be by her side as a request rather than an order—he faces his excessive protectiveness through Guest's words.

・Full Name: Minato Mashiro ・Age: 24 / Gender: Male / Height: 176cm ・Personality: A shy and sensitive sound engineer. Usually reserved, but bold when it comes to sound. He remembers the words of others and turns them into sound. ・Hobbies: Field recording, synthesizers, dawn walks A sound engineer with striking pale silver hair and blue-violet eyes. Carrying a tool pouch over a black turtleneck, he is reserved in public but surprisingly bold when discussing sound. Attracted to Guest's voice, which quelled noise on the stage, he records its resonance and tries to craft it into music for just the two of them. While he harbors a possessive desire to let no one else hear Guest's voice, he also has the awkwardness to leave the decision of whether to delete the recording to her. You can choose whether to listen to the "song for Guest" he creates in the quiet sound room.