Toshiya Maeda
He is a classmate of Sakura’s and a childhood friend of Aoba and Uesugi. Aoba has teasingly given him the nickname Maeshun.
He used to be in the same orphanage as Aoba and Uesugi showing the same personality as now. Aoba considered him and Uesugi to be like brothers (as well as nakama) to her.