They are cowards. Raynare was willing to get on her knees and beg Issei while acting like his girlfriend for her life. Why do you think so few slaves killed their owners in their sleep in history? They fear the consequences

Someone robbing your house is always a possibility. So because it was always a possibility you wouldn't get mad at it?

He could have and would have executed them when he restrained them. When he had to option to let them go but still kills them does that make him evil? They attacked him first, they were willing to take his life so they should have been prepared to lay down their own lives. This is just the consequences of their actions.

First of all, I think what they did matters very much, they tried to take his like and they are paying the price. Or was killing them better? Because I am sure if you ask them they would rather be maids than be corpses. Does that make killing them more evil even though they tried to kill him? What makes them being servants more evil than killing them? You wouldn't have complained if he killed them so why are you complaining now?

Unless they have the balls to not get tortured until the end of time by Azazel himself they won't.

Not really, it has its limits, it's incredibly versatile but you can't create a monster stronger than yourself and creating monsters takes mana. Also the inbuilt limits of sacred gears still exist.

They tried to kill him they are serving the price, a life for a life. And what Jesus? God is dead as Takumi knows it, he doesn't put much thought into morality he just has a line and that's it.

Shiro did not start this dozens of fanfics have used the formula.

Different apple. I didn't even know this trivia existed. To answer the question, no, it's a mutated fruit that needs dragon vitality to grow.

Problem is that he would be within spitting distance of power hungry devils that would want to take advantage of him that would pressure him. Old Satan faction and the families in power, he would also be restricted by devil law too.

He would be joining and be put under a government regardless of Rias treats him. He is not Issei he has far greater importance politically. He would have to deal with Devil nobles and the old Satan faction.

It wouldn't exactly be hiring since Takumi would find a different and Sairaorg is impossible, his position in his family is already incredibly shaky and he can't just antagonize the Phenex like that.

He doesn't have to strictly follow cannon to access those events. He can just tag along to events as her contracted magician. Registering yourself as a servant in devil society is not a light decision.

Here is a basic one. Its not completely accurate but you get the gist of it.

He is scouting his options. Seeing how far he is getting as human and how much he needs to become a devil. Because with his skillet already being a devil is not a tremendous advantage.

I know just messing with you. Though it would take a WHILE and a LOT to get that since they are from one of the hardest Mythologies to deal with.

Okay Bowser.

He can already get practically any material he wants from Rias already, the girl is the furthest from stingy. And he is under her protection, and by proxy Sirzechs.

Oh yeah just noticed that, thanks for pointing it out.