PersonalityEditSano is typically quiet and rarely associate with others. This is most likely caused by his depression after quitting the high jumping team because of his injuries. At the start, he can come off blunt, and even rude at times. With the help of Mizuki, Sano becomes more outgoing and confident. He also has a caring an protective side, which he occasionally show towards Mizuki, such as pursuading her brother and defending her when her secret was revealed. When it comes to high jumping, he is rather dedicated, as seen when he undergoes rigorous training to compete again. He also has an arrogant and competitive side which is often directed at Nakatsu.
In the drama, despite being arrogant and prideful, Sano was shown to relinquish his pride and falls on his hands and knees and plead for forgiveness multiple times. Fans often mock and ridicule Sano, especially since he is a classified as a determined and strong protagonist, for entering such a humiliating position. Designers stated the reason for this was to weaken Sano's image as the main hero, as they want Mizuki to the poster child for the drama. Furthermore, they joked that forcing Sano down down on all fours with his butt sticking up is a suitable punishment for his arrogance