He was like my brother, but he wasn't my brother. His name was Saejima.

[ he says it like he's still getting used to the sound. sa-e-ji-ma. ]

In my memories, sometimes... people would make these promises to each other. Really big promises, like, "I promise to be with you until we die." "I promise to always take care of you." And someone you made that promise to, they were your kyoudai. Saejima was mine.