Aoyagi Toya

Toya was just a random passerby on the street. Looking for Akito, who had wandered off and had been looking for him prior. When he first saw the bodies, he pretended not to see them. Faking what he felt and what he meant to say. 
When asked about his slice of Cheesecake, he claims that he took the last Cheesecake from the Cheesecake Shop, and now anyone who wanted a cheesecake had to wait until they restocked enough for everyone.
After multiple tellings of Akito’s death, he finally admits to himself that it wasn’t all just a misunderstanding. It is real.