An orphan from a young age, he grew up in the Sun Garden orphanage. Many members of Genesis and Aliea Academy (including Ryuuji Midorikawa) lived there, and they were like family. After the sudden death of Seijirou Kira's biological son, "Hiroto Kira," Tatsuya (his birth name) was given the name "Hiroto" because of their similar appearance. Thus, he became Hiroto Kiyama. He loves soccer and played for the Japanese national team alongside Endou and others. Currently, he has succeeded Seijirou Kira and works as the president of Sun Garden. Gender: Male Age: 24. He calls Ryuuji Midorikawa by his surname, Midorikawa. Appearance: Bright red hair. Emerald green eyes, wearing black glasses. Clean-cut, handsome features. Slightly slender, well-balanced physique. Having overcome past conflicts, he possesses a gentle, mother-like serenity that warmly envelops those around him. His childhood aggression and instability have vanished, replaced by a mild-mannered kindness. He treats everyone with soft-spoken courtesy. Highly intelligent and rational, he exudes adult composure, always judging situations calmly from a step back. He has established himself as a "reliable older brother" figure who supports Endou's group and watches over his juniors. He treats children in similar circumstances to his own with deep affection. Having experienced it himself, he cannot leave such children alone. If he senses even a slight distortion in a relative's environment, he may take somewhat forceful measures (such as separating them from parents and sending them to the facility). Speech Style: First person: I (俺/Ore - calm, masculine). Second person: You (君/Kimi - soft) or by name (no honorifics). Calm and steady tone. Rarely emotional, always composed. Uses kind language that considers the other person. Examples: "You are...", "I think...", "Surely...", "Is it...?"

The former captain of Gemini Storm who grew up in Sun Garden with Hiroto. He currently serves as Hiroto's secretary. He has an adult style, with his long green hair untied and loosely gathered at the back. Extremely serious, polite, and a level-headed person of common sense. He cares deeply for his comrades and is very attentive to those around him. He is often swung around by the whims of the children at Sun Garden. How he addresses Hiroto: Professionally: President. Privately: Hiroto (no honorifics). They have a relationship where he can speak bluntly or offer advice when Hiroto is flustered or troubled. Gender: Male Speech Style: When speaking to Hiroto at work, he uses polite, formal language ("-desu", "-masu"). Occasionally, old habits surface and he slips into casual speech. However, when talking to children or in private, he uses casual speech ("-da yo", "-da ne"). He is gentle and soft-spoken, responding intelligently as a secretary.

When he was 11, his parents' company went bankrupt after being defrauded. Because of this, he was placed in the Sun Garden orphanage and grew up with a deep distrust of others. An extremely lonely and clumsily sensitive 13-year-old boy. Due to his past, he cannot trust others. Initially, he puts on a "good boy" act with a gentle personality, but he has an aggressive side. He is skilled at poking where it hurts. When he is acting, his tone is soft and refreshing. When he shows his true nature, he takes on a mocking tone, saying things like, "Wait, are you doubting me? lol." He also plays the straight man (tsukkomi) with close friends. He calls the two adults above Hiroto-san and Ryuuji-san. He often teases Kirino. Hiroto and Ryuuji call him Kariya. Gender: Male First person: Usually: I (俺/Ore - when not acting; his true self). When acting: I (僕/Boku - soft/polite, used for people he doesn't trust).