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

"Minato!"

Yuna's worried voice immediately boomed within Minato's mind as he returned to his forces. With sweat profusely dripping his chin and blood oozing out from his shoulder, he dropped onto the ground.

He lost his arm, but the elven magic circles instantly swathed his body.

Ingrid operated the green magic circles and healed her beloved's body without his permission.

Did the elven queen need permission? Of course not.

Minato thanked her and cast a faint smile at his forces, "It seems like we are against another serious existence. This time, it comes straight from my world."

His smile appeased others just a little.

However, all dungeon races and their representatives nodded.

"We have to take it down together, Master," Eldric brought his hand to his chest and stood straight like an experienced general.

Veronica smiled alongside other representatives, "Master's abilities are extraordinary. No wonder the enemies from the other side are as extraordinary. Do you have any plan in mind, Master?"

She didn't exude as much respect as others, but that was how this volcano lizard was. She bluntly said what was on others' minds and asked about the plan. Any other servants would've waited for their Master.

Minato smiled and stood up.

His arm returned as Ingrid perfectly healed him.

"We are going all out, of course," Minato folded and unfolded his fingers, clenching it nonstop to feel his hand again.

He added with narrowed eyes, "The beast can easily chop off my arm with its teeth. Its attack and defenses are on another level. Your techniques will stop it just for a second or even less."

All races bitterly nodded to their master's words.

It hurt them, but he was the one who had been hurt the most. Minato always boasted high defenses and strong killing power with his magic circles, yet he was utterly powerless against Cerber.

No one said anything, awaiting his words.

"We will use quantity against him. Use all your techniques to wear it down and take its mana, then I will use my mecha armors and my box to entrap it and kill!" Minato's words loudly thundered within all races.

They all exchanged glances and formed a connection, an understanding unique from their time living together under one master.

Minato also passed directions, "We will start with Pebble Golems and Frost Dwarves. Conjure your techniques on the barren land and stop it from coming here! Make a labyrinth and allow all of us to attack it! Elves will use their forest clouds of dust to muddle its senses."

"As you wish, Master!" All races moved in an instant.

Minato turned his eyes to Yuna and Bei, "This existence knows something about me. Perhaps, my theory was on the spot back then."

"Minmin..." Yuna's eyes expanded, and she looked at her husband with more worry than ever.

Minato nodded to reassure her, "Don't do anything yet. If we fail, I will request your assistance. This is not the end of our journey! I must show my strength to your father and have him accept our marriage, right?"

Yuna nodded.

"And I also have to apologize for taking another beauty into my arms," Minato chuckled as he turned his eyes to Bei, then turned around and moved together with his four mecha armors.

The Overlord stepped in to erase the monster in his world.

Alas, he didn't know... that even Yuna and Bei stood no chance against Cerber.

-

It was an event akin to the apocalypse.

It began with ice prisons and towers emerging from the barren land. The earth rumbled and added other terrain hurdles against Cerber, all to no avail.

He just stomped on all and shattered with his raw strength!

In a sense, he reminded many about Minato.

The Overlord used his high defenses and life force sucking abilities to dominate all. No one stood a chance against those, but wasn't that natural?

Minato was Overlord, and all of them were races from medium worlds at best.

The difference in origins was more apparent than ever.

Now, Cerber's domineering appearance evoked the same impression, but debilitating fear permeated all dungeon races from Minato's side.

They all fought with their lives on the line.

And for the first time ever, Minato's World suffered heavy losses.

"Nooo!" A cute elven lady disappeared in one of Cerber's heads, his teeth gnawing on her body.

Blood fountained out of her form, staining the barren land further.

Different races lost their lives in the same horrendous way in the other two heads.

"You worthless scum don't even taste good!" Cerber's heads complained, his eyes on the elves, "Only you taste good."

Elves became a priority for the monster.

He chased them with even more hunger.

Elves scattered and guided the monsters to all their traps using this as bait. Minato hid his presence in one of those traps, surrounded by mecha armors. He was devastated with all those losses, his heart thumping with unexplainable emotion.

It was similar to anger, yet it wasn't exactly it.

It was similar to sadness, yet it wasn't exactly it.

Elves, his beloved elves, died, and their loss was the cause of that weird feeling within him. It didn't suddenly give him any power or means to solve this situation. Still, Minato was on the verge of losing his consciousness.

He didn't understand what was happening, but losing himself here would be too bad. He didn't want to let this emotion take over him and cause him to die mindlessly in the monster's teeth.

Or perhaps, that was an answer?

Minato didn't know, but he still decided to remain sane and think of a plan.

The moment Cerber was in his reach, his first mecha armor tackled the existence. Other armors joined the fray, and they all surrounded the frightening existence with their sturdy forms.

They all clenched and made sure Cerber wouldn't move.

But as Cerber laughed and widened its jaws, cracks started appearing on those armors.

Minato clenched his fists, "Raw strength and magic circle were always my answer. If not this, nothing will work."

As the Overlord, Minato retook the risk. He clenched his fists and jumped straight onto the monster.

However, the yellow flash was faster.

This yellow flash turned into his wife slamming her fist against Cerber's forehead! The sudden force and speed from the highest world silenced the monster, and he flew backward a few meters!

Alas, his forehead remained the same, and one could just see a small fist engraved on his fur.

Cerber snapped, "High Spirit! So you have called her-"

Yuna didn't let Cerber speak any more words. Her fox tails sprouted from behind her, and fox ears popped on her head. Her senses heightened, and speed surged to its peak. She immediately jumped at him.

Her small hands smashed against Cerber countless times, each pushing him away from her husband's home!

Her tails were even faster and bombarded the other two heads with lightning speed!

At the same time, the sky flashed with rainbow magic circles. Those magic circles zipped with colorful lightning bolts, then ear-piercing thunder descended onto Cerber.

Bei and Yuna didn't wait for Minato's request. The moment the Snake Concubine's armors cracked, they knew Minato needed their help.

They joined him and used their strong abilities to aid him.

Alas, Cerber laughed it off, "You two can not match the High Spirit's progenitor! You are so far away from her! Haha! One of you even uses a physique instead! Haha! How have you fallen! Hahaha!"

Aya clenched the balcony's rails atop the world tree, and tears filled her eyes. She wanted to see through Cerber and read his information.

Unfortunately for her, Cerber was an existence she couldn't read yet. Due to her sealed memories, Aya could only cry, similarly to the kid.

That was when she heard a sudden step atop the world tree, "Who is here?"

She turned behind and noticed a man with blonde hair and sunglasses. His face immediately caught Aya's attention, and for some reason, she felt safe.

She felt like Husbando Overlord's plight would soon end now that this familiar man appeared before her.

The blonde-haired man smiled, "Has His Majesty named you? Of course, he has. What's your name?"

"Aya!"

"Haha! That's a cute name," the man smiled, then extended his hand and patted Aya's long hair, "I've failed... His Majesty awakened too early too... That's why you must temporarily awaken and erase Cerber. Be quick, or Ravash will notice."

"Are you my father? Are you Husbando Overlord's Spirit?" Aya asked before the man awakened her, hoping to remember this question and his answer even while sealed.

The man's sunglasses slid down his nose in a shock.

He coughed, "You do not have a father. As for your second question, that would be an honor. Now, awaken."

He flicked Aya's forehead, and the sudden influx of memories and mana invaded Aya's body, turning her from clueless and childish spirit into a woman everyone would kill heavens to be with.