Rekker’s assumptions were correct. Minoru knew, quite intimately, what Ziggy was. And as the brother of an alien’s boyfriend and friend of the Stardust household, Isamu was very much in the know. But at the same time, he was also trying to discern exactly what Rekker knew - especially before saying anything that could lead to trouble.

He really didn’t want to make any more trouble with Ziggy…

“Enough to assume that neither Ziggy, nor Tom for that matter, would have likely offered your band a spot on the tour if they felt he was unable to cope with your presence. In one form or another.”

It wouldn’t have surprised Isamu if the cocaine use increased whenever Rekker was nearby. To even things out. (Oh, to be able to study the pharmacodynamics there… one of the many curiosities Isamu had about Antheans.)