What would Muzan's relationship with Tanjiro be like if Gyutaro forcibly transformed Tanjiro into a demon, while Tanjiro remained an obedient demon? What would change? And what could Muzan do?
Please see here since, since I've had a similar Ask in the past! If this is follow-up to that one, the answers are simple:
1. Muzan likes obedience. He'll decide the earrings aren't bad. In fact, it's kind of a funny way to stick it to that Sun Breath user he met once.
2. If Tanjiro does not attain sun-mastering abilities due to different circumstances, then the Corp gets a new reason to hate Kibutsuji Muzan. So, you know, the usual. As Tanjiro has always trusted, somebody in the Corp will probably help him out by coming to claim his head and stop him from doing (more) bad things. The big question is whether Nezuko would prioritize her brother (joining the bad guys) or prioritize protecting humans (fighting against her brother, staying on the side of the Corp even without his emotional support).
3. If Tanjiro attains sun-mastering abilities, it's over for the Demon Slayer Corp and Muzan gets to be a perfect being forever and ever. Maybe he'll share the ability with the demons he likes, maybe he'll be the only demon now that he doesn't need them anymore. Depends on his mood.
