Zishu widens his eyes a little at his soulmate, as if shocked by the question. "As much or as little as needed."

But keeps walking, leading the way to one building he recalls passing earlier. "This one doesn't seem to bad, Lao Wen. I don't think it'll take you too long to fix." Because the aim is for a place they can make as cold as possible.

"Unless you're tired, of course. Then it'll take longer."