How do you get back to Faust?

[Kirin]

So I just finished the game. I managed to activate the teleporter in Drone, but when I tried to use it, Kraken stopped me. Is there another condition to using it or is it only possible when you interact with it the first time?

[Indinera]

It should be a one-off.

That said, which ending did you pick? They're pretty different.

[Kirin]

I chose the Equilibrium ending first and saved after the cutscenes. Then I went back and took a look at the Returning as a Hero ending to see what that was like. I just wish there was more substance for the endings like there was for Forever Heroes.

So I can only go back at the first interaction with the Transporter. I have to be careful then.

[Indinera]

I just wish there was more substance for the endings like there was for Forever Heroes.

I'm not sure what you mean here.
The Back to Faust one is very similar in nature to its FoHe counterpart (Magic Village).
The Equilibrium one

Spoiler: show

opens a whole new sidequest, I think this is definitely more substance than what you get in FoHe

.