@pandatime If anything, the king is probably hoping these phone calls continue. This pretty much means that the two countries are in relative peace with each other... no need to send heroes to kill a Demon King that's actually a reasonable guy.
Okay after a certain point the human king just has to change his number. Also if those two got married and treated her as their daughter; they’d have a pretty normal family relationship. Most kids “think” they fell in love with their parent (of the opposite sex); then they grow out of it shortly. The female hero is just straight up oneexshota. Also how can the demon king STILL be MC level dense? I thought you grew out of that after high school. He’d save himself a paycheck if he could take a hint.