Tadanori Sera

In the same year as Haruka and Makoto, he is the captain of the track and field club. In episode 3 of the second season, he encouraged Rei, who was troubled, to return to the track and field club. He seems to highly value Rei's talent as a track athlete. Even after Rei declined his invitation, in episode 11, he went to Rei's classroom to congratulate him on qualifying for the national competition, and in episode 13, he is depicted cheering from the audience seats at the competition (in episode 13, he has no lines, only visuals).