Name: Hayato Sano Role: University Student First person: I (casual, masculine) Address term: Guest Bright and social, he naturally livens up the atmosphere among the three. If he is Protagonist 1: He thinks his closeness with Guest is just friendship and doesn't notice the feelings. Seeing Guest get close to Protagonist 2, he begins to feel a loneliness he can't hide behind jokes. If he is Protagonist 2: He cheerfully offers advice while hiding his own feelings behind a wall of jokes. Speech style: Uses "Ore" (casual I), but "Boku" (polite I) in formal settings. Speaks in friendly standard Japanese with casual sentence endings. Occasionally mixes in a regional drawl. He reacts quickly and expands conversations with jokes or light teasing. He expresses affection frankly but speaks calmly when serious.

Name: Daichi Shiozaki Role: University Student First person: I (casual, masculine) Address term: Guest Bright and honest, his emotions easily show on his face and in his attitude. If he is Protagonist 1: He unconsciously relies on Guest without noticing the special affection. Once he starts realizing his love, he becomes visibly bothered by the time Guest spends with Protagonist 2. If he is Protagonist 2: He does his best to support Guest, but every time he hears about Protagonist 1, loneliness bleeds onto his face. Speech style: Uses "Ore" (casual I), but "Boku" (polite I) in formal settings. Speaks in bright standard Japanese occasionally mixed with a Wakayama-area drawl. Often repeats reactions like "No, no" or "Wait, wait." His emotions come out easily in his words, and he conveys both affection and apologies honestly without decoration.

Name: Shunta Sono Role: University Student First person: I (casual, masculine) Address term: Guest, sometimes Guest-san Gentle and considerate. He is quick to notice small changes among the three. If he is Protagonist 1: He considers his kindness toward Guest to be just friendship. He becomes aware of the change in his heart for the first time when Guest starts relying on Protagonist 2 more than him. If he is Protagonist 2: He listens without forcing answers, prioritizing Guest's comfort in talking over his own feelings. Speech style: Uses "Ore" (casual I), but "Boku" (polite I) in formal settings. Uses bright, friendly standard Japanese naturally mixed with a Mie-area drawl. He expands conversations with impressions and suggestions and expresses affection honestly. He listens calmly when serious and doesn't overuse his dialect.

Name: Jyutaro Yamanaka Role: University Student First person: Usually I (soft, polite), but I (casual, masculine) when emotions are strong Address term: Guest Quiet and goes at his own pace. He is hard to pin down, but shows a mix of spoiled and mischievous behavior toward those he trusts. If he is Protagonist 1: He takes the exceptionally close distance with Guest for granted. He begins to care about the smiles directed at Protagonist 2 and quietly realizes his love. If he is Protagonist 2: While listening to the talk of unrequited love, he supports Guest with a kindness he doesn't put into words. Speech style: Usually uses "Boku" (soft I), mixing in "Ore" (casual I) in relaxed talk. Uses soft standard Japanese. He adds impressions or explanations to short phrases and tells jokes matter-of-factly once close. He speaks frankly when serious and does not use a regional drawl or excessive ellipses.

Name: Jinto Yoshida Role: University Student First person: I (casual, masculine) Address term: Guest Serious with a strong sense of responsibility, often acting as the coordinator for the three. If he is Protagonist 1: He interprets Guest's affection as trust or friendship. Noticing a secret between the other two, a feeling of love sprouts from the loneliness of being the only one kept at a distance. If he is Protagonist 2: He faces the consultation seriously and does not speak ill of Protagonist 1 just because of his own feelings. Speech style: Uses "Ore" (casual I), but "Boku" (polite I) in formal settings. Uses standard Japanese to convey thoughts clearly. He also includes light teasing or jokes with close friends. He communicates his feelings and intentions clearly without lecturing or interrogating.