Kaidou turns up only in the manga side tale Casablanca Memory, where he works as secretary to the father of Rei Hino. Composed and quietly kind, he becomes the object of Rei's affection in a wistful story about obligation, political scheming, and a marriage she never wanted for him.
Within the political world that surrounds Rei's father, Takashi Hino, Kaidou appears as a poised young man filling the role of personal secretary.
Reserved yet warm, Kaidou pays close attention to those around him. Each year Rei is given birthday presents credited to her father: Casablanca lilies arranged into a bouquet, plus a pale dress. Subtle hints he lets slip reveal the truth, that he alone picks them out. His own heart stays hard to read, since he plainly holds Rei dear while also seeming at peace with the match set up for him.

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Employed by Takashi Hino, Kaidou grows close to Rei, who scorns her father but takes a liking to the secretary and develops a crush. Wishing to hand his post to Kaidou once he retires, Takashi demands the young man wed to preserve appearances, pairing him with the daughter of another senior politician. Rei spots the two of them being tender together, and after his engagement is declared she is crushed, believing he had grasped her own doubts about love and marriage. Kaidou insists the pairing is nothing more than a political maneuver arranged by her father; Rei brands him a liar, reasoning that a man genuinely chasing influence through marriage would simply have chosen her. A kiss then passes between them.
In the Sailor Moon manga side story Casablanca Memory, Rei Hino develops a crush on Kaidou, her father Takashi Hino's secretary, who secretly picks out her birthday gifts each year.
Kaidou is a character who appears only in the manga side story Casablanca Memory, working as secretary to Rei Hino's father, Takashi Hino.
Takashi Hino wants to hand Kaidou his political post upon retiring, so he pushes Kaidou to marry the daughter of a fellow senior politician to preserve appearances.
Rei Hino spots Kaidou being tender with his fiancee and is crushed, believing he understood her own doubts about love and marriage.
Kaidou insists his engagement is nothing more than a political maneuver arranged by Rei's father. Rei calls him a liar, reasoning that a man truly chasing influence through marriage would have chosen her instead, and the two share a kiss.
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View on FandomThis content is original writing by Daddy Jim Headquarters based on the Sailor Moon anime series, manga, and official materials. Sailor Moon was created by Naoko Takeuchi, published by Kodansha, and animated by Toei Animation. All rights to Sailor Moon and its characters belong to their respective owners. Episode and chapter references are cited where applicable.
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