after new heroes Join humanity it is started to regain their territories, after pushing back  demons back to their demon continent humanity prepared for last war before all demon kings could be killed demon God appeared middle of the war and save the remaining demon kings , unfortunately humans of this world does not have their God, wait wait if humans don't have god's then who give magic to humans to  Summoned heroes into this world Minato. it's beast God because once humanity is defeated  demons next target will be the beast continent,

to protect his own domain beast God able to convince God of order with help of God of order he able to cconvince your world God to allow your peoples to be Summon in this world, now let me resume back to the topic, after appearance of demon God others God  cannot stay still so they had no choice but to interfere in war demon God alone cannot defeat other gods so he decided to end the war. if war have been end why we have been    Summoned Minato.

It's because of 1 Hero he made a wish for heroes to be Summoned  every 1000 years so this type of things not happen in future.why Minato?

 So do you want us to fight the demon kings Minato.

According to him he and his friends have fight to protect humanity if humanity got destroyed his all efforts will be wasted. So you want us to protect from demons Minato?

No as I said earlier we cannot force you,We will only help you to gain enough strength so you can decide your own future.