even if it was before mugen train arc shinobu would know bc if you remember in S1 during Tanjiro, Inosuke, and Zenitsu's rehab Tanjiro ran into Genya who had already gotten bigger from eating demons which means he was already going in for check-ups
wait is it just me or genya is holding a child in his backstory what the... so there is another shinazugawa then sanemi and genya like the baby in his hands is alive omg
couldn't genie have had the possibility to become the strongest demon slayer In the world? cause I mean I know it wouldn't last forever but if it had come down to it he could have reached the title a few times, cause I mean what if he had gotten the chance to eat muzans flesh? or another very strong demon such as uppermoon 1? like just saying
