Chiaka Sakashita's Father
A grieving parent who becomes a major antagonist in the story. He's the father of Chiaka Sakashita, who ran the Baseball Club at Takizono Private Academy before her death.
Consumed by loss and fueled by rumors, he blames Amane Suou for surviving an accident that killed his daughter—and takes matters into his own hands by attempting to hold Amane and her friends hostage. His actions stem from a dangerous mix of grief and the persistent whispers about how Amane was the sole survivor of that same incident. Rather than accept what happened, he's convinced that Amane is somehow responsible for his daughter's death, and he's willing to resort to violence because of it.
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