Ken looks up at Chikusa, eyes desperately unhappy and searching for an answer to a question he can't even articulate to himself. "Dunno," he mumbles, because he doesn't. His throat is squeezed tight around the words.

Eventually, a coherent enough question presents itself for him to ask it. "Mukuro-sama won't need me for months...?" His voice is unmistakably plaintive. There's a lot that can be inferred from that question, and the naked fear with which Ken asks it.