The third prominent female character, Rin is a competent swordswoman and a member of the Kamishiro branch family. Rin has a reserved and dignified personality and always dresses in a samurai-style kimono that is suitable to her warrior nature. Rin is ordered by the head family to secure Kazuki's genes in order to ensure the Kamishiro family's dominance, which according to Kuriko, has been weakening because of the number of branch families. At the beginning of the story, Rin would prefer to kill Kazuki than be forced to marry someone who, in her words, has bad grades, no athletic prowess, and no redeeming values. However, as the story progress, she gradually softens up to Kazuki and even begins to smile after witnessing his kindness and compassion towards others, including herself. Kazuki is the only one who could eat her horrendous cooking, and was totally honest about it.
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