
Yeah. But as the highest position in azenka and commander of the celestial order (the reason why the empire is wary of him) he dont want to involve the innocent citizens and the knights to unnecessary fights for the throne especially if it would spark war in the whole empire thats why he's asking if he could have enough time to decide. But if they pressure him using Echi (since he thought lady diassant saw through him that Echi might be his weakness) he could abandon his holy sword and personally move by himself

I get he doesn’t want to involve innocent citizens and endanger anyone, but he has memories of his past life so it makes it stranger to me? Like he knows they were the reason for MC’s suffering and their greed led to the continents/the worlds destruction. So shouldn’t he be busting down doors and getting rid of all these problems?

Yes he can but he's considering what Echi wants, observing how she responds to what is happening to her surroundings even he knows that she also came from the past. As of the moment, he assumes she just want to have a peaceful life as an ordinary noblewoman based on her answer when he asks her opinion at the ceremony thats why he's hesitating to his decision
He doesn’t have any reason to follow his family right? He’s also stronger than all of them and would have no problem getting rid of them, so why does he need to be cautious especially if they’re threatening MC who he loves? Was it because of inter-continental relationships/maintaining the power balance? I can’t remember?