'Maybe, if Fuyuki was born first from us (himself and Saki), there would definitely not be war and darkness happening in this universe, because his presence is the light of life....'
There will be no war does not mean there never was, maybe there will be but it will never take place in a prolonged manner like this.
Yae and Mafu keep trying hard to beat their enemies.
However, they forgot one thing, there is Yuuto and Anko who they should protect as the key to peace.
When fighting together, they find pleasure in itself, boiling blood envelops the body, and warm, channeled down to the weapons they hold. Slowly the life energy seemed to rise again and erase some of the darkness in this world.
If we can remove the darkness little by little, then there is nothing impossible that peace cannot exist.
Currently the key to victory is only in determination and belief.