At least he knew that I was chasing after him and couldn't keep up with his footsteps. He could stop his hurried pace in the world and wait for me, an insignificant person. I thought that I was a stranger to him, and I knew that the oaths I made in the past could be broken like thin cicada wings with a snap of my fingers, but at least in my lifetime I could follow his footsteps, walk in his shadow all the way, and be a friend he could rely on when he was alone.