Yuki Sanada  

, 真田ユキ

Yuki possesses vivid red hair, struggles socially, and displays an unsettling expression when anxious or fearful. He frequently relies on his phone for information on various subjects. When under pressure, he imagines himself drowning as a coping mechanism. Although Yukis somewhat apprehensive about Natsuki, he finds Haru to be quite peculiar. Additionally, while considering him a friend, Yuki isn't particularly fond of Harus friendship with him. Yuki resides with his French grandmother and enjoys the ocean and fresh air in Enoshima.