pika318: I thought of this idea based off the same universe as Chapter 4, Chapter 6 and Chapter 7, but since this happens in when Lucifer and Maou were in the Demon World, this can apply to the universes in Chapter 2 and 5 as well.

One shot: Sleep

It had been the end of a long day of being flung down cliffs, trying to activate his magic and failing, only to be caught before he fell to his death.

Even then, Satan was no closer to floating in the air, much less flying just like this mentor, which she was doing now, taking them back to the area which the Pahalo Denino clan called their home.

Satan was already feeling lethargic on the way back, trying not to nod off as he settled in Lucifer's arms during the flight, and as soon as he landed in the territory of the Pahalo Denino clan, he felt his overwhelming urge to just lie down and sleep.

Seeing Satan's behaviour, Lucifer scoffed,

"You were just falling the whole time, I was the one flying down to catch you and bring you back up. How are you tired already?"

"Oh shut it… it takes a lot of concentration to focus my magic even if I failed to produce any results okay? And I'm still grow…yawwwnnnn" Satan retorted, but he let out a huge yawn before he could finish his sentence.

"Go get some sleep, sleepyhead. It's annoying seeing you like this." Lucifer said, but there was no bite to her tone despite her words.

"Right… how about you?" Satan asked.

"I'm not tired." The fallen angel replied.

"Must be nice to be all grown up…" Satan grumbled as he sat down, leaning against a huge rock. It was not long before steady breaths were heard as sleep overtook him.

Lucifer looked at the young horned demon with a softened gaze, then turned around and left the area.

Despite being tired, Satan did not sleep long. He jerked awake suddenly, his eyes darting around his surroundings anxiously. Then a few seconds later, he took a deep breath, exhaling slowly.

"Another nightmare…" Satan mumbled, leaning back to rest against the rock behind him. He closed his eyes, trying to get more sleep.

They're coming!

Satan, run!

No, don't hurt my child!

But the voices came once again, not allowing him any peace.

"You didn't sleep long."

"Wargh!" Satan shouted in surprise, before turning to the source of the voice.

Above him, Lucifer sat on the large rock he was leaning against, looking down at him with an amused expression.

"Is there a need to react so much?" She asked.

"It, it's because you spoke suddenly!" Satan complained.

"Sure…" Lucifer replied, but as she observed the younger demon more, she noticed that he did not seem well rested at all.

"You look like you've been stomped on by an Azure Horn."

"Huh?" Even when Satan replied, he could not help but agree with Lucifer's statement. After that nightmare, he felt like crap.

"You should get more sleep. Else that old man would just scold me for overworking you too much." Lucifer stated.

"I guess so…" But after that nightmare, the young horned demon did not feel he would be able to get more sleep.

There heard the flutter of wings above him, and the next moment, Lucifer was landing next to him.

As he looked up at her from where he was sitting, feeling confused by her actions, she sat down next to him, leaning against the rock.

"Erhm… what are you doing?" Satan finally asked.

"Making sure you get some sleep." Lucifer replied.

Just as Satan was wondering how Lucifer sitting next to him will help him sleep, she held his right shoulder and pushed him towards her. Being completely unprepared for that action, he tilted sideways, falling right on top of her legs.

"Wha…?" Satan exclaimed, but as he tried to sit up, she put a hand on his chest, trapping him there.

"When I was flying around the Demon World, I passed by a lot of clans. Many female demons do this to their children." Lucifer said from above him.

A memory begin to tug at his mind. Of gentle hands and a kind voice, looking up to see a beautiful face, silver hair and white wings. And falling asleep just that that.

Satan looked up at Lucifer. The colours were different, but it was the same wings.

"Relax, I won't do anything." Lucifer said.

Satan nodded, and even if he still felt a little tense, he closed his eyes.

Sleep came easier than expected.

Lucifer sighed softly when she finally heard steady breaths coming from the younger demon.

He was really such a handful.

Just then, she heard footsteps approaching them before they stopped.

Looking up, she realised it was the leader of the Pahalo Denino clan, also Satan's adoptive father, Camio.

He stood there with widened eyes. Clearly, the last thing he expected to see was Satan lying on the lap of the most powerful and dangerous vagrant demon known in the Demon World.

Camio opened his mouth, as if to say something, but with a warning glare from Lucifer, the Demon Bird General clamped his mouth shut, and after looking towards Satan with a rather fatherly gaze, turned around and left, leaving the pair in peace.

A few decades later

"Lord Demon King? Are you in there? I came to report…" A small demon from the goblin clan entered the throne room, intending to report the results of the scouting mission today, but the words died in his throat as he saw the scene before him.

The leader of the Demon King Army, Satan Jacob, was lying on the floor of the throne room instead of sitting on the throne, clearly sleeping.

But that was not the issue here.

There was another figure lying on top of Satan.

Demon General Lucifer, who was two to three times smaller than Satan, was curled up on his chest, also deep in slumber.

The goblin had a feeling that he had just stumbled upon something very private.

"P, perhaps I should talk to Lord Camio about the possibility of building private quarters for Lord Demon King…" The goblin muttered before leaving the room quietly.

END