Brian is an athletic jock. He is always seen chasing after Jinny who doesn't return his feelings. Despite this, he still goes after her.
Brian has a bad temper.
He used to dislike Yuu and wanted to beat him up because he thinks that Yuu is stealing Jinny away from him. He challenged Yuu to a basketball match and when Yuu won, Brian became nicer towards him.
He doesn't know that Doris secretly has feelings for him until she confessed to him at episode 69. They have been dating since then.