Tobira Hida's formative years were forged within an orphanage, defining his early circumstances. He emerges as a familiar presence at the Cubic Cafe, though his official occupation remains unspecified; he self-identifies as a street vendor despite unclear professional activities.

Hida reappears in "Memories Off: Sorekara," maintaining his association with cafe environments through frequent visits to Narazuya, where protagonist Isshu Sagisawa works. This appearance confirms a shared childhood history, as both resided in the same orphanage.

Details regarding specific character development, interpersonal relationships beyond professional contexts, or narrative contributions across documented media remain absent.