The world of this story is almost the same as in the orginal work.
The only thing that is not the same is that the girls don't like Diablo. They know that he is a pathetic NEET and total loser.

After a long day Diablo rested in his room, refreshing some mana, when Shera entered.
"Oh what is that? Diablo slacking off again?" She touched his small manhood.
Shera, like the other girls became enslaved to Diablo, so she was forced to satisfy him on a daily basis. She sure as hell hated it but there was no way out of the magic!

"Your penis is so small, I could barely see it Diablo."
She started to jerk him off. Diablo himself was to shy to speak at this moment.
"Lost your tongue Diablo? You are always such a big talker and sooooo badass."
After a short while Diablocame, covereing Sheras gloves with his semen.
"Look at the mess you made, you pathetic excuse of a demon lord!"

—

Even though Diablo is a pathetic NEET who is afraid of women, his magic is the real deal. Not one of the women he casted his spells on could break free or hurt him physically.

"Hahaha...lay beside me Rem!" Diablo ordered, trying to sound like a real demon lord.
Rem lay beside him, looking at his disgustingly small penis.
*Sigh* "Can we please get this done you piece of crap?"
"Aaah..okay...but...aaah...I...mean....can..you..." Diablos facade broke instantly.
"WHAT?! SAY IT!"
"P-please use your tail."
"You weird loser." but she had no other choice but to comply and used her tail to stimulate his small penis.
Not long after touching it, it started to twitch like crazy.
"Say me when you-!" too late. Diablo weakly came on her face.
"are close...." *Sigh*

—

"You want me to do WHAT?!"
Sylvie was furious after hearing the request this loser demon lord had asked for.
"P-p-please step on my cock with your feet."
"On this pathetic excuse of a penis?!?" She looked at his small worm in disgust.
"Ye..yes please!"
*Tch. Fine, not like I have another choice."