Mikanagi Jirou

千夜子的祖父。一名疯狂的科学家，绑架了全部7名女孩并对她们进行实验直至其死亡。在故事开始前，他在等待审判期间于狱中自杀身亡。

简介来自 VNDB · 由机器翻译生成

Chiyako's grandfather. A mad scientist responsible for kidnapping all 7 girls and subjecting them to experimentation until their deaths. He died by suicide in prison while awaiting trial before the story's events.

简介来自 VNDB