Shuri Wakatsuki

Before his departure, Sana Hidaka shared a deep bond with Shuri Wakatsuki and her twin brother, Syūsuke. The trio grew up as inseparable childhood friends, forming a tight-knit connection that defined their early years together. This shared history highlights the significant impact Sana's move had on the siblings, marking a pivotal shift in their long-standing relationship and the lives they once shared as a close-knit group of friends.