Just Shadow Exchange

That has a cool down and whatbifmhe exchanges with none that is protecteting her and doesn't see what's coming ╮(￣▽￣)╭

He can't, he already did that, exchange from seoul to busan for do the dungeon. He need 3 hours (2 hours based on novel an hour already left) to waiting the next shadow exchange.

That's why he use kaiser to fly. He can't wait 2 hours waiting the time.

Right.. wow the novel explains way more

Right. And I was so annoyed that he would just waste that when it’s not an emergency -.-

Well we don't know the future ._.
Me too too when i read the novel "ahh.... If you didn't feel superior with your power and come with train..."