Gen really had no problem holding him there, and since he wasn't going to start that fight, he let it happen.

"The whole point is to discover the side effects. It's temporary." Senku responded to the pair of them, flicking his eyes between them.

"Yeah, well..." He looked a bit contrite at Eva's comment about how he'd felt. "I don't actually want to die or anything, but it's just an experiment. It's a physiological response. I couldn't help it."