Souichirou Kurebayashi is the deceased brother of Teru Kurebayashi. Respected and admired as a very talented computer engineer, he led a team of engineers that included Tasuku Kurosaki and Riko Onizuka (I'll add these two parts later when I need them). Little is known about him, though he has been alternately shown as comically affectionate towards his sister and those he cares about to being serious and empathetic.