[ It's easy to let him have that moment, because he needed a moment, after all. ]

[ The question, at last, caused his breath to hitch. But - ]

[ But. If everything the train said was true - they couldn't be from the same timeline. It didn't make sense. They'd remember Senku being gone for this long, if nothing else. Or, if time somehow progressed infinitesimally in their own world ... that didn't seem to be what the train was saying ... Senku would've remembered. And told him what he'd seen. ]

[ He can't change Senku's future, because this wasn't the Senku from his timeline. ]

[ (It didn't change how he felt about - basically any version of Senku.) ]

... Yeah.

I didn't see it. I was doing reconnaissance in the enemy camp when - they had guns. They had a sniper. He was smug, he told me you were dead.

[ He spoke quietly, but saying it aloud - Gen hunched over his knees. Senku could be dead and he abandoned him. ]