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

Chapter 4: Minato’s power

"Eh! It’s just a nickname I’ve made for you," Aya giggled, then patted the pillar next to her, "This is your power! You are an Overlord whose world will join the highest ranks! You know that all the highest worlds have risen in this way? Amazing, right?!"

"Amazing indeed," Minato brightly replied and high-fived his spirit.

She chuckled and explained, "If you go to the high world, you will see the same pillar in the middle. That pillar fuels the ruler of each world and gives them ultimate power. Your pillar is small and nothing like theirs, but that’s because we are just getting started!"

A spirit explained how exactly the pillar worked.

Across many worlds, mysterious phenomena such as dungeons regularly happened. Those dungeons blessed anyone who overcame them and provided them with ample treasures to keep them in the vicious circle of killing.

Those in strength would usually visit the dungeons and scheme to get territory with one!

Overlords were different, however.

They entered the dungeon and added it to their world.

Additionally, Overlords grew stronger with people’s admiration and fear.

These two things were the core of Overlord’s Pillar and their world.

Minato clenched his hands, "I am genuinely excited."

"I see it, you know? Hehe!" Aya saw a broad smile on her master.

His eyes rippled with confidence, but a spirit also saw a faint relief within those. That was surely because Minato didn’t expect to get power strong enough to match Yuna’s father. He wanted to work hard to get accepted and fend off anyone who dared to split him from his family.

Now, he was even more eager to practice the supernatural ways.

He shared this casually with Aya, who nodded to his words, "That’s cute. As expected of the Husbando Overlord!"

"Haha! This husband will work hard! Well, I must return. I am sure Yuna is anxious about me right now," Minato patted his spirit, and she nodded brightly at him.

An unknown power swirled around him.

That was his way out, and Aya utilized it for Minato, who wasn’t versed in magic yet. He bid farewell to his spirit and left her alone.

After Minato disappeared, Aya sat down near the pillar and stared blankly at the sky. It was boring to be alone, but the Overlord didn’t request her assistance outside the world!

He was also getting accustomed to his new life and power, so Aya didn’t want to be trouble outside.

She stared at the sky, "I will ask on the second meeting."

-

"I don’t know what happened! I can’t explain anything!" Bei shouted at her elder sister, who had been in quite a nervous state.

Going back and forth, Yuna exposed her true self and was ready to smash anyone who snatched her husband.

Her fox tails stood erect as she stomped in the room.

Bei didn’t dare to reveal her thoughts, but she blamed their father inwardly.

Other than him, who else could’ve snatched the husband? Her sister wasn’t even able to react, and it was clearly a power beyond their understanding.

In this world, other than scant people, no one used mana.

They deemed mana and people such as Bei as fantasy beings.

Bei inspected the spot Minato had been before disappearing, and she found no mana traces at all.

Although vulgar and carefree, Bei was born with high talent, regarded as one of the highest in the High Spirit World. She primarily relied on her talent and instincts. Still, for her elder sister’s sake, she exerted whatever she had learned from her home.

To no avail...

’Where the fuck did he go? If it’s father, then he must be dead already, right?’ Bei gawked at the bed with an absent-minded expression.

It was easy to imagine Minato getting smashed by their father, but that thought lasted for a short time.

Such cruel thoughts were incongruous right now, and Bei shook her head to dispel those. As she did, Minato’s short conversation replayed itself within.

She knew he was an orphan and that he didn’t have any family other than her sister.

Bei felt her heart clenching, ’It’s actually sad he didn’t get to spend more time with elder sister. I also would be like a good in-law-’

Those thoughts promptly stopped as Minato appeared on the bed.

He smiled brightly at them, but that smile triggered something within Bei!

She let out a kick which was somehow faster than Yuna!

"The fuck you scaring me for?!" She screamed while her leg kicked Yuna’s husband out of his bed.

Bei didn’t even let Yuna use her strength to punish her. She summoned a magic circle that promptly covered her whole body and turned around, "To think I would get so worried for a mere mortal, to say nothing of him being so fucking weak! Goddamnit fuck!"

A vulgar sister left the room.

Yuna stared at her back with mixed emotions, then shifted all her feelings to Minato, "Minmin! What happened?! Where did you go?!"

"Uh, I was in my rune. Forgive me, Yuna," He sweetly whispered to Yuna’s ear and patted her hair.

Minato knew how to read the mood, and he was well aware of how worried his wife was given the circumstances.

It was the first day she had shared her background with him.

He treasured her before calling Bei back to the room.

"There’s no dungeon in this world, right?" Minato asked after Yuna’s sister took a seat on the chair.

Bei didn’t even look in his direction, and she listened while fiddling with her hair.

Yuna replied, "I haven’t sensed anything, Minmin. But I wasn’t worried about dungeons or others as no one in this world could hurt me. If you want, I can search thoroughly through Earth."

"What do you need dungeons for?" Bei asked, "You are weakling. Better to practice in the outer world first."

Minato smiled at her words despite his wife glaring in Bei’s direction.

He explained, "It’s part of my Overlord power. Thanks for worrying about me. It means a lot."

It wasn’t just Yuna who supported the marriage, but also her sister princess from another world. Of course, Minato didn’t know the rest of their family, but if Bei didn’t need much to see their love, then only their father probably would stay in their way.

Minato hugged Yuna, "I hope it will be just your father who’s all about strength. Now that I think of it, I think Bei takes after your father while you are similar to your mother, right?"

"You are misunderstanding something," Bei sneered, "We have the same father, but our mothers come from different families. All ten princesses have different mothers, to say nothing of brothers and other concubines."

She turned her beautiful eyes to the husband, whose lips parted in a shock.

Bei was highly amused by that expression. Even her elder sister was laughing from the side, "Overlord Power, was it? There’s no Overlord without a harem. I look forward to you changing."

"Huh? So you will teach me magic?" Minato asked.

Yuna could pressure her sister to teach him, but Bei didn’t need to fear much in this case. If she wanted, she could’ve long since returned to their world!

Bei shrugged, "I will."

Her presence here was unexpected!

It was a pleasant addition despite her vulgar tongue!

After all, Bei was Yuna’s sister.

Knowing that she would stay with them for some time, Minato decided to become closer with Bei and become a good in-law as well.

That would turn out differently than he had imagined.