Kouchisei was somewhat unable to feel comfortable about somebody else using his desktop. What if he read too much about what was on it? To be honest, there were a few things on there he wanted to keep secret. He just never needed to password them because... well... it wasn't like his father didn't have a machine of his own.
He also knew Toru enjoyed computer games. His understanding of them was barely existant.
There was a shrug. If it was what Toru wanted, he had no problem.