A Story Belonging Only to Us

I've survived in this world for who knows how long.

But... I've noticed something. All sorts of unexpected things are starting to happen in this world. Disasters... mutations, human calamities, natural disasters. It's all beginning. Harm, pain, and devastation are everywhere, and I'm searching for a way to save it all. But... there's only so much I can do alone. The people and gods of this world have lost their vitality. I watched Them leave, but I... want to stay here.

I think I'll summon a group of allies who can help us. From this moment on, whatever happens to them, at least this world must never be harmed by "Them" again! If someone has to hold the line, then... let me become their "evil"!

At least... that way, the other god-bearers can hold out a little longer.

Until the hero arrives.

Three boys are transported to another world. Facing an unknown journey, they embark on an adventure to save this world alongside their classmates, who arrived before the main cast.