...Still.

There is truth in what you said, Sanae.

Since it's overrun with youkai, humans are scared to come here...

In other words, we need a barrier that "Conveniently blows away only youkai and welcomes only humans".

Now that we've got the gist of it, we'll strike while the iron is still hot! Let's develop the barrier sign without delay!

Yeah! Let's blow them monsters into the Milky Way!

The key point here is youkai. Things will be better if we can keep them away.

The key point here is youkai. Things will be better if we can keep them away.