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Makoto is the unlucky protagonist of School Days, Summer Days and Shiny Days. (Appears as the main hero in Cross Days.) A generally mannered and composed student in year one of class three, his life becomes complicated when he begins to unfaithfully initiate polyamorous relationships with girls that... read more

Makoto is the unlucky protagonist of School Days, Summer Days and Shiny Days. (Appears as the main hero in Cross Days.) A generally mannered and composed student in year one of class three, his life becomes complicated when he begins to unfaithfully initiate polyamorous relationships with girls that he is unable or unwilling to singly commit to. Although he is originally casual, gregarious and understanding, after becoming a sex addict, it completely corrupts his personality and he instead became apathetic, rash, and egotistical towards others, regardless of the harm or later consequences. However, once he realizes what he has done wrong, he is quick in his attempts to fix the situation. Makoto lives with his divorced mother and has a younger sister named Itaru who lives with their father. He is childhood friends with Katou Otome and best friends with Sawanaga Taisuke.

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Setsuna Kiyoura is a student in year one of class three, who like Kotonoha, is on the student council as a class representative. One of the more inscrutable characters, Setsuna is a keen, focused and habitually tacit girl who tends to have and keep the most level head of her peers when situations go... read more

Setsuna Kiyoura is a student in year one of class three, who like Kotonoha, is on the student council as a class representative. One of the more inscrutable characters, Setsuna is a keen, focused and habitually tacit girl who tends to have and keep the most level head of her peers when situations go awry. She is Sekai's best friend, having grown up with her, and to a considerable degree is overly solicitous of her, to the point of hurting others to ensure that Sekai is happy. In Summer Days, Setsuna is shy and timid, in contrast to her more serious portrayal in School Days. Her mother, Mai, only makes an appearance in Summer Days. With the exception of Kokoro Katsura, Setsuna is the shortest character of the main cast, and is often mistaken for a junior high school student, a trait she is well aware and conscious of.

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Employed waitress of Radish. Oruha Hashimoto initially does not like Setsuna and teases her with ridicule and put-downs, but eventually grows to accept her. She is a good friend of Noan Murayama. Of the entire female cast, Oruha is the only girl with an established boyfriend from the start.

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Wholesome, carefree and overall cheerful, Itaru is the younger sister of Makoto. Separated by the divorce of their parents, she lives under the sole custody of their father, who she does not like, and occasionally sneaks out to come and visit her much adored older brother. Her favorite food is peach... read more

Wholesome, carefree and overall cheerful, Itaru is the younger sister of Makoto. Separated by the divorce of their parents, she lives under the sole custody of their father, who she does not like, and occasionally sneaks out to come and visit her much adored older brother. Her favorite food is peaches.

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Karen Katou is the playful younger sister of Otome Katou. Unlike her older sibling, Karen is cheerful and unabashed who is just as playfully teasing as she is concerned of Otome. She is good friends with Kazuha and Futaba Nijou and looks up to Makoto as her mentor and role model.

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Direct and headstrong, Otome Katou is a student in year one of class four, who like Nanami, is a member of the girl's basketball team. She is usually authoritative to her peers, tolerates nothing but her way and opinion, and does not generally associate with anyone but her trio of friends Minami Obu... read more

Direct and headstrong, Otome Katou is a student in year one of class four, who like Nanami, is a member of the girl's basketball team. She is usually authoritative to her peers, tolerates nothing but her way and opinion, and does not generally associate with anyone but her trio of friends Minami Obuchi, Natsumi Koizumi and Kumi Mori; who together frequently harass and coerce Kotonoha. Despite her difficult behavior and personality however, Otome can be particularly tender and shy, especially around Makoto, who she has known since junior high school and has a crush on.

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Kokoro Katsura is the sweet-natured younger sister of Kotonoha. Unlike her older sibling, Kokoro is peppy, talkative and full of curiosity, and although she frequently teases Kotonoha, she worries about her greatly. She has a good friend named Uzuki and affectionately looks up to Makoto as her older... read more

Kokoro Katsura is the sweet-natured younger sister of Kotonoha. Unlike her older sibling, Kokoro is peppy, talkative and full of curiosity, and although she frequently teases Kotonoha, she worries about her greatly. She has a good friend named Uzuki and affectionately looks up to Makoto as her older brother. Kokoro lives with Kotonoha and their mother Manami and father.

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Polite and reserved, Kotonoha Katsura is a student in year one of class four who is on the student council and serves as one of the most pivotal characters in the story. A cute and noticeably well-endowed bookworm, she becomes the initial love interest of Makoto early into their second term, and wit... read more

Polite and reserved, Kotonoha Katsura is a student in year one of class four who is on the student council and serves as one of the most pivotal characters in the story. A cute and noticeably well-endowed bookworm, she becomes the initial love interest of Makoto early into their second term, and with some effort from Sekai Saionji, becomes his girlfriend after she reciprocates her affection for him. While Kotonoha for the most part is calm and gentle, she has a very delicate conscious, which under stress leads to irrational culpability, delusions and even malice. She has a younger sister name Kokoro and lives with their wealthy mother Manami and father in the fictional area of Haramihama. She is disliked by Otome Katou and is subject to her bullying and duress.

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Manami Katsura is the biological mother of Kotonoha and Kokoro.

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Temperamental and fastidious, Hikari Kuroda is a student in year one of class three, recognizable by her signature squid rings hairstyle. She initially believes that Makoto and Sekai are dating from the very start, and tends to negatively generalize him; later growing closer to him herself. Though s... read more

Temperamental and fastidious, Hikari Kuroda is a student in year one of class three, recognizable by her signature squid rings hairstyle. She initially believes that Makoto and Sekai are dating from the very start, and tends to negatively generalize him; later growing closer to him herself. Though she is actually quite friendly and social, Hikari is the most childish of the cast; sporting an unduly knack for whining and prying into the affairs of others. Her family owns a confectionery store and café, famous for its lemon custard pie. Hikari is good friends with Sekai and has an unreciprocated crush on Taisuke Sawanaga.

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Futaba Nijou is the younger monozygotic twin of Kazuha, distinguishable by her beige headband and dressy clothes. Like her sister, Futaba is a fellow classmate and good friend of Karen who looks up to Makoto as her mentor and role model.

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Kazuha Nijou is the older monozygotic twin of Futaba Nijou, distinguishable by her red headband and sailor outfit school uniform. She is a fellow classmate and good friend of Karen who looks up to Makoto as her mentor and role model.

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Sekai Saionji is a student in year one of class three who is the antithesis and foil of Kotonoha. A playful and outgoing classmate seated directly next to Makoto, she takes a curious interest in him during their first acquaintance, and in every medium of the series, helps to establish his bond with ... read more

Sekai Saionji is a student in year one of class three who is the antithesis and foil of Kotonoha. A playful and outgoing classmate seated directly next to Makoto, she takes a curious interest in him during their first acquaintance, and in every medium of the series, helps to establish his bond with Kotonoha. Though genuinely upbeat, Sekai does occasionally show a more serious side, and when sufficiently frustrated can be loud, selfish, overemotional and even manipulative. She lives with her mother Youko in the fictional area of Motehara-Sakashita and works part-time as a waitress at the family restaurant Radish.

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Saionji Youko, maiden name Inou, is Saionji Sekai's mother. Benevolent, knowledgeable, wise and effervescent, Youko serves to provide advice and guidance to her daughter when necessary, especially concerning her relationships. She is a restaurateur... read more

Saionji Youko, maiden name Inou, is Saionji Sekai's mother. Benevolent, knowledgeable, wise and effervescent, Youko serves to provide advice and guidance to her daughter when necessary, especially concerning her relationships. She is a restaurateur of Radish with friend, and slight rival, Kiyoura Mai.

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Ai Yamagata is a student in year one of class three. She is good friends with Sekai Saionji and Hikari Kuroda, and is an acquaintance of Makoto Ito and Otome Kato from middle school.

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Originally the protagonist of Summer Radish Vacation, an earlier game by 0verflow.

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Setsuna's mother. Mai is a successful career woman with experience in planning projects. She has a friendly rivalry with Saionji Yoko, mother of Sekai, and is always looking out to be helpful to Sekai any way she can.

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The second waitress of Radish, Noan Murayama is roughly the same as Oruha, though she is more gentle and easygoing. Setsuna looks up to her as a role model.