Child Rearing Hero and Children of the Demon King

It’s pitch dark.
I can’t hear anything.
The twins’ voices, Aura’s voice, even Pochi’s screams.
…… This is not good.
This, have I died by any chance?
A Brave Hero who went to the Demon King’s castle to defeat the Demon King himself died by shielding children and a companion from an ordinary monster, huh.
…… Nonono, wait a moment. I can’t die just yet.
I have children that I must protect.
They may be the Demon King’s children, but they are obedient kids, and I ought to protect them from the other monsters.
I must protect them.

「That is a good spirit!!」

I suddenly heard an unknown voice within the darkness. Even though I haven’t felt any presence, the voice continued.

「You~ I like you!!」

It was a woman’s voice. However, it isn’t a voice I recognize.

「Umu. I thought to beat you up were you thinking of using them but, fufufu, that shitty idiot’s judgment was really good for once, huh」

She sounded satisfied. Just who and what is she talking about?

「I will leave the children in your care. Leave the scolding of my crappy husband to me!」

…… Husband? Husband. A name given to a man that is married. A man who has a wife. Husband. A man with a bride.
Huh?

「Hahahahaha! Well then, return! My adorable children are waiting for you after all」

Err, umm, wait a moment-

The darkness cleared up and Yuuya lost his consicousness once again.