My wife's sisters want me to make a harem?!

Minato and Yuna spent a good time together, saving the remaining dungeon races from the first low world.

They spent time together, just two of them.

However, Aya always found a place for herself. None could refuse such a cute spirit when she wanted some attention. Besides, Aya liked Yuna the most, and the same went for the fox wife.

Yuna's worries were also gone from her heart.

Her husband was still the same simp he was for her. Adding that he didn't kill mindlessly and spared innocent people on every step, Yuna didn't really have to worry about anything.

She returned to the same Minmin!

The next day, Bei entered the fun. Naturally, she got hold of the schedule and prepared herself for the night with Minato and Ingrid.

Yuna also saved nights for herself immediately after returning.

No one dared to comment about that.

Days passed, weeks passed, and then Minato conquered the last dungeon.

That was a feat worthy of celebration.

However, Overlords never had it easy.

After conquering the last dungeon, Minato received information from his Overlord Pillar. He achieved the power to go to the next world! That was a natural consequence of his actions, making Minato continue his conquest.

However, the good news didn't last long.

ROAR!

After adding the last dungeon race to his family, a terrifying roar swept through Minato's world.

That roar sent shivers down everyone, including Yuna and Bei.

Minato narrowed his eyes, "I don't know how much capacity my world has... Is the world going angry at me?"

"Of course not!" Bei bit her lips, "You damn bastard has another broken monster targeting you! First was that Snake Concubine! Now, we have to expect some ravenous beast who has been starving for years!"

Although Bei spoke out her genuine feelings, she was dangerously on the spot.

Yuna found no words to refute those words, and she felt like her sister was on a good track. She held Minato's hand, who stood straight and looked far into the barren land.

At last, the beast revealed itself.

It was a dog, but its build seemed closer to the wolf. It had three heads, all salivating crazily while their eyes shone red with stark hunger.

It stared at the lands while sneering, its eyes scouring the territory in search of one person. Other than Overlord, who else it might be looking for?

Minato turned his eyes toward Yuna and Bei, "I will face it alone. This is one beast, potentially the Overlord Enemy, which means this is an opponent I must beat on my own. Keep an eye on other enemies."

"Good luck, Minmin... I have a bad feeling about this anomaly, though..." Yuna clenched Minato's hand for the last time, then let it go.

Bei nodded, "I feel the same... This monster made us tremble... Don't underestimate it..."

"I won't," Minato replied with a stoic expression, not letting his achievements muddle his eyes and underestimate such a powerful existence.

He left his lands and stepped on the barren land.

In no time, the beast and the Overlord faced each other.

"It's you! It's really you! Haha! His majesty, Ravash, is truly omnipotent! He saw through it all! Haha!" Cerber, the three-headed beast, spoke with all its heads.

Minato narrowed his eyes, "Ravash... You belong to him?"

Three pairs of eyes rippled with hesitation, "I won't tell you anything. One wrong word, and you might start reminiscing. I don't want my meal to suddenly turn into the hardest material in the universe."

Cerber stopped talking, not letting Minato learn about himself at all.

He stroked the ground with its paws like a bull, then charged at Minato with all three jaws widely open!

Minato promptly reacted, lifting his hands and drawing [Wall] magic circles. The transparent walls formed three rows before Minato, boasting his diamond defenses with a bright light! No one in the low world would go through those walls.

Ravash's beast, and an existence soaked in his hatred, tore through the walls as if they were made out of paper.

Minato felt shivers from this alone, then he kicked the ground and appeared at the side, to no avail.

Whether he moved to the side or somewhere else, the beast was just too fast. The disgusting stench already crawled up Minato's arm as one of its heads cast a shadow on his body.

It instantly closed its jaw, then separated Minato's arm from his body!

Minato held in, biting his lips and glaring at the monster with his eyes widely open. He gathered strength in his left palm and struck one of its heads.

His punch caved in and left a mark on Cerber's jaw, but that was just all.

The other two heads howled, "It hurts! It hurts you damn monster!"

"You calling me a monster?" Minato replied while his fingers spread.

He summoned the killing ability [Kill].

That skill sucked out many life forces, and it never really failed Minato. However, the beast's lifeforce was too much for newbie Overlord. That beast was one of the heavenly beasts whose purpose was to erase the Overlord with the highest potential.

To say nothing of Minato's low world's strength, he would need at least a few weeks to suck out the whole lifeforce! The monster's defenses were also the highest out of all enemies Minato faced, meaning that his magic circle sucked too little.

Would Cerber let Minato take his lifeforce, though?

Raising his paw, Cerber destroyed the magic circle and looked down on Minato, "That power is such a waste on you! Such a waste!"

What Minato achieved was just angering the beast more.

It didn't help him in the slightest.

He was utterly rendered useless before the heavenly beast!

The second head opened its mouth, ready to devour Minato, who couldn't even run away. In its eyes, the pleasure and satisfaction surged as it was about to finish one of the tasks its master had passed to him many years ago.

Minato wouldn't let himself get killed, though.

He formed another series of walls and defended against the monster by buying time. At last, High Spirit's magic circle spread beneath Minato's foot, and he teleported to his Overlord Pillar.

At the same time, the blonde-haired man with sunglasses stared at the evens from the hidden castle.

Half of his stomach was gone due to Cerber's sudden breakout.

"I didn't expect the seal to be this valuable after the first low world's conquest... I've failed... After all those years, I've failed at the worst time. At this juncture, I can only sacrifice myself and awaken her temporarily."

He cast his eyes far to Minato's lands. One would see how he looked at the elves treating Minato's wounds in those eyes.

He also noticed Aya, the person he had just spoken of.

However, when he noticed Bei and Yuna, his body froze, and his sunglasses fell from his trembling nose.

The man kept trembling as if he had noticed something disastrous.

"Ravash... You've gone too far," he closed his eyes and prepared to move.