Chinatsu Hayase

早瀬千夏
Age: 14 Birthday: March 30 Height: 163 cm She is the younger sister of Masamune Makabe and currently attends middle school as a second year. She does not possess the same surname as her brother due to Masamunes choice of changing from Hayase to Makabe. Source: Masamunekun no Revenge Wiki
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