Serph's gaze briefly flickers to the track marks on the inside of Levi's elbow. He both recognises and doesn't recognise that kind of affliction, which means the knowledge that its a symptom of some kind of drug usage comes from his fragmented memories.

"Alright," he agrees. It's clear that the reflections have rattled Levi. "Go up the river bank. Keep your eyes on our destination."

Serph will come with him.