Isekaid 40ish Man Returns, Regressed as a Peerless 17-Year-Old

There is no escape from that dense magic bone spear.

Though I can just burn it down with flame upfront.

However!

「Futaba! Narrow!」

「Yeah!」

With just one word, she understood my intention.

Futaba made the divine domain small enough for just the three of us to barely fit in.

All the spears that were out of range disappeared.

Only two spears that had come flying to us earlier managed to come in but I grabbed both of them with my bare hands and burned them down with heat until they turned to powder.

「Release it」

「Yeah」

When Futaba stopped the divine domain, there were a large number of spears stuck in behind us.

It seems like when you are inside the divine domain, you are treated as if you are not there.

「Kuh………this is out of my calculation. Escape—-」

At the moment Senka turned her back to us, I’m already on top of her and cut her head off.

「Impossible…..that’s too fast……you bastard—」

Without letting her finish what she was saying, I burned Senka’s decapitated head and body.

Usually, I make a barrier around first before I could use fire magic but with the existence of the divine domain, there’s no need for me to worry about that anymore.

It’s not my intention to involve Futaba in battles but she will surely stick her neck even if I tell her not to.

I know because I would do the same if our positions were reversed.

She’s my precious little sister after all.

Above all, it was probably Futaba who protected me all the time in my first life.

「I wonder……whenever I use this technique, I feel so warm and fuzzy.」

Futaba put her hand on her chest and let out a small sigh.

I remember Susanoo when he was about to die but I did not tell her anything.

That was Susanoo’s wish and I think it’s better for Futaba to not know.

「But…..areh……? Somehow, all I can see is white……」

Futaba, who had been leaning on me unsteadily, passed out as it was.

That’s magic power depletion.

No matter how much her body and soul are suited for it, the problem of not having enough magic power is something that must be solved.

For the time being, it would be best if she only uses it when I’m with her.

Considering the characteristics of the technique, I suppose it could still be strengthened but I have to investigate more first.

-0-

Still, I’m glad Futaba is able to use this technique.

With this, she can ensure her own safety when she’s in a pinch.

Unless there’s a god that can use and break that technique.