Either that or at least establish more clear limitations to this power.

I think people underestimate just how broken it is to be able to teleport anywhere around the world.

If a second season does happen it kinda asks a lot of suspension of disbelief from the viewers. What do I mean by this?

In terms of combat, what stops Jentry from teleporting a demon or something to the bottom of the ocean?

If there is a tense scene where she has to run away or get to a place quickly can't she just teleport to a safe place, gather her toughts and just come back more prepared or instantly get herself to the place where she is needed?

And in the emotional side of things. Why is her getting back to Korea treated as a big deal in that long chat with her mom or when Michael gets angry because of this? It's kinda silly that it's supposed to be an “important” choice when she can get from Texas to Seoul in a matter of seconds seemingly without any limitations.

“It doesen't work in Diyu” Yes I know, but does that mean that every antagonist is gonna have to use the now repetitive tactic of getting her to Diyu somehow?

Maybe it was just me who was somewhat ticked off by this portal power but i would like that in the second season (please come to us) they adress this by explaining the limitations better or making something happen so this power doesen't work as well anymore.

They Should Nerf Jentry's Ability To Create Portals