Katsuya Honda
Katsuya Honda was Tooru's father. He passed away before the events of the series, but his influence shaped Tooru's character significantly. He was a student teacher when he met Kyouko Honda, and he played a crucial role in helping her turn her life around and leave behind her previous lifestyle. Their relationship became the foundation of Tooru's family and, by extension, much of her emotional core throughout the story.
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