Colossal

Even as the sun dipped down the horizon and twilight was nearly over, nothing special approached the corpse of the Demonic Yak. 

Mark looked at it from way above his tree space. From there, he could still see the corpse lifelessly lying there. He could only wait for the night now. Nothing had hooked the bait.

Smiling to himself, he felt the warm body lying against his chest and patted Dona's head. She was well asleep, her hands tied around him tightly while she snored away. 

Looking at her, her gray hair fell behind her like a wave while her eyes were now closed. Her faint breaths—not really snores—brushed against his neck, and he felt all the more comfortable. At the same time, his cock, which was still buried deep within her pussy stirred slightly.

"Urr…"

Patting the girl's back, he opened the system. 

Immediately, information buzzed into his mind.

_

[Demonic Heart]

[Desire: 

Conquer Dona's Heart (Completed)

Conquer Dona's Body (Completed)

Reward: 3 Years of Longevity (Claim)]

[Soul Lifespan: 33 Years]

_

Curious, Mark clicked on 'Claim,' and he felt a warm wave of energy deep within him. 

His lifespan increased by three years, and even though he didn't feel much difference, there was some kind of nice feeling within him that he couldn't put his finger on.

Dona stirred slightly and snuggled into his neck. "Urr…"

Mark had an urge to go for one more round with her. She was too cute when she did this. But then, he sighed and decided not to. The woman was rather exhausted, and she deserved some rest.

She had cum for, like, 5 times earlier!

He had already gone crazy on her; it was best to give her some time. 

For now, he decided to try something else. Gently grabbing hold of her butt, which made her flinch, he kissed her lips, and his tongue dived deep into her. He used a demonic trick on her.

_

[Dungeon Heart Seed: 

Plant a Dungeon Seed in creatures who are loyal to you, and anywhere 5 meters around them will become your Dungeon, while your own fleshly heart will be your Dungeon Core]

[Only works on creatures who are submissive to you in heart.]

[While inside your Dungeon, you will be hidden from the World Wills of the Other Worlds.]

_

She comfortably moaned in her sleep, and Mark could suddenly feel a bit of his blood leaving him. Through his tongue, they left and entered into her mouth, which then quickly vanished into her body.

Dona opened her eyes, and their gazes met.

He gently patted the back of her horned head. "Go back to sleep. Nothing is going to hurt you."

"Hm." She completed the kiss with him and then hugged him tightly before going back to sleep. Mark caressed her long hair. Indeed, such an amazing creature she was. 

At the same time, he sensed a thin field surrounding them. It was invisible and nonexistent, but at the same time, around 5 meters from Dona, he felt a sort of comfortableness that he had never felt before.

It was just so… calm. 

Dona now carried his seed in her heart. She was like his flag; wherever she went, 5 meters around, that was his territory. But there was not much use for the territory in this world. It would only come to use if he went to the Other Worlds.

Silently, he fell into a small nap.

***

Mark opened his eyes, startled at the immense sound of an explosion. Dona was also just beside him, sweating as she looked up at the sky. Her face was awash in a crimson glow, and he had a bad premonition.

Eyes roaming around, his gaze stopped on the figures of two giants. Their bodies were so colossal, the mere sight horrified Mark to his bones—their heads pierced the night sky while each of their movements shook the land.

"What happened?" he blurted out and looked down towards the blue portal he had seen yesterday. Hundreds of demon corpses were down there, each grotesque to look at as if some giant had stomped them into half-paste.

He paled in horror.

Just as he was frozen in place, from the skies, the giants met each other in a fist-to-fist battle.

Deep roars echoed as their fists burned to light and met.

BOOM!!

The world itself quaked, and Mark felt his head ring. Dona stumbled towards the side and almost fell down the tree. Thankfully, she got hold of a branch at the last moment, and Mark pulled her back.

"KREEEE!" A piercing eagle cry echoed from the far distance. Both Dona and Mark felt their ears bleed.

It was the griffin.

"We can't stay here!" he pulled Dona's hand and stood up. Face full of worry, he looked down at the ground below, and that made his face change. 

Many demons were below, and they were all moving towards the shimmering Portal. This was unlike last time, though; most of them rushed to enter it and pushed and pulled on each other. It was a blood bath.

Heads were flying, hands were being severed, and fire, ice, and explosions were everywhere. The mere sight sent chills down his back.

All of them were stronger than him.

None of them were mere Demonlings.

BOOM!!!!

The world quaked again and this time, even Mark nearly fell. He could even see the many trees toppling from their roots. Their own tree was barely standing and its branches, too, were being destroyed.

Breathing heavily, Mark slung Dona across his back and looked around nervously before once again focusing on the colossal giants. Even one of their foot alone could utterly decimate this area.

Suddenly, the red moon was shrouded by a humongous shadow, and despair coated Mark's face. It was one of the giants. It was stumbling towards them.

"What do I do? What do I do? What do I do? What do I do? What do I do? What do I do? What do I do? What do I do? What do I do?"

BOOM!!!

Hundreds of demons were splattered to the ground and turned into meat juice.