I’m not a native English and This is MTL. So, I cannot guarantee that the translation 100% contextually accurate or appropriate. If you find a translation error, feel free to write it in the comments

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Sisters' Quarrel

At a casino on the main planet of the Banfield family, the man who was the manager looked nervous and concerned about his appearance.

He is accompanied by a group of strong security guards, whose faces are also tense from nervousness.

One of them asks the manager.

"Are you sure about this, manager?"

The manager replied, trying to fight off the urge to run away.

In truth, he himself wanted to run away too.

"Of course. I'm the manager of this casino. It's my job to deal with anyone with dignity."

The manager and his staff were headed to a place where slot machines were lined up.

When the manager and his staff arrived, the customers looked surprised and wondered what was going on.

Casinos are places to bet money and often deal with customers who are excited about winning or losing.

Sometimes rude customers resort to violence.

In such cases, the casino's burly security guards have arrested them.

The opponent they are nervously facing is——.

"Aaaah!! It sucked agaiiiin!! Give it back! This time my wife is really going to punish meeee!!"

——Yasushi who was screaming and banging on the counter with his hand.

At first glance he appears to be nothing more than a dull-looking man in a kimono, but he is in fact the swordsmanship instructor to Liam, the head of the Banfield family.

He is a master of School of One Flash (Issen-Ryuu), a style of swordsmanship that has slaughtered the sword masters of the empire.

The casino manager and security guards on Planet One would be no match for Yasushi.

Also, Liam respects Yasushi.

Picking a fight with Yasushi would be the same as picking a fight with Liam.

It is no wonder the managers are nervous.

Even so, the manager greeted Yasushi with a smile.

"Dear customer, if you hit the table any harder, it will break."

"Eh!?"

Yasushi was surprised for a moment when he noticed the managers, but then he quickly straightened up and crossed his arms.

That appearance is almost warrior-like —— or so it seems.

Yasushi cleared his throat exaggeratedly.

"Oh-hon! My apologies. But isn't there something strange about the settings on this machine?"

Yasushi, who lost a lot of money, seems unhappy with the settings on the machine.

This puts the manager in a difficult position.

"We swear we have done nothing wrong. This is all down to luck."

Normally, they would take him to the back and kick him out of the casino.

However, if the other person is Yasushi, it's a different story.

After all, Yasushi was a prime customer for the casino.

Not only was he a regular customer, he also had a large amount of money on him.

Furthermore, he brought more profit to the casino than others because he somehow lost more money than the general average.

Even taking that into account, he was still someone the casino didn't really want to deal with.

Normally, they would not want him to come, but if they refused, it might make Liam furious.

The manager was also paying close attention.

Even so, Yasushi persists.

"But isn't this too much? I wish the manager would show some generosity."

As Yasushi looked like he wanted even a little bit of his money back, one of the security guards operated the terminal.

When a screen appeared in the air, the face of his wife, [Nina], appeared on it.

An intelligent woman with long black hair and glasses was smiling, but her eyes were not smiling.

Yasushi's face turned pale.

"Eh?!"

"Yasu-kun, you shouldn't be bothering the people at the casino. More importantly, I told you that Yasuyuki was at home today so you should play with him, right? I wonder why you are at the casino."

"Well, you see, Yasuyuki has grown up and is now——"

"I told you to play with him, didn't I? ——Right?"

"——Yes"

Yasushi weakly agreed, and the call was cut off.

The manager handed Yasushi a bag containing a souvenir.

Inside was a bag of high-grade sweets.

"Thank you very much for visiting us today, Yasushi-sama."

The manager bowed deeply, and all the security guards bowed in unison.

"Thank you very much!"

Yasuhi succumbed to the pressure from the managers and trudged out of the casino.

At Yasushi's mansion, he found Fuuka and Yasuyuki.

"What is Riho doing at this time of day?"

Fuuka was out in the garden swinging a wooden sword, her movements like a dance performance.

Yasuyuki was mesmerized by her flowing movements.

Since he was raised as a knight under Klaus, he could even see that her movements were first-rate as a swordsman.

"It looks like you're dancing, Fuuka-neesan."

To Fuuka, she was just killing time by working up a sweat, but when she noticed that Yasuyuki was impressed, she wanted to show off.

"Shall I show you some more impressive techniques?"

"Is that okay!"

Yasuyuki was visibly happy, but Fuuka sensed an unpleasant presence and tossed the wooden sword aside and picked up her own sword that was nearby.

She quickly ran to Yasuyuki's side and got into a fighting stance.

"Fuuka-nee-san??"

"Someone's there. Yasuyuki, be careful."

As Fuuka looked around warily, she heard giggling.

She turned her gaze to the roof and saw Rinho carrying a sword.

The sword had been discarded from its sheath, and Fuuka felt something was off.

"Rinho, what are you——"

Fuuka was taken aback by the aura that Rinho exuded, having grown up with her as a sister.

While Iai of the divine speed is the basis of School of One Flash (Issen-Ryuu), the way she had thrown away her scabbard was nothing but strange to see.

More than that, the aura of strength that Rinho radiated overwhelmed Fuuka.

Rinho jumped off the roof and landed on the ground.

However, with both feet and her left hand on the ground and her body in a lowered stance, she looked like a beast.

"You are so carefree, training to dance. You're weaker than me, so shouldn't you train more?"

It was the same provocative line as usual, but Rinho was exuding murderous intent.

Fuuka opened her eyes wide and unleashed a Flash.

"Kuh."

The Flashes collided and exploded in the air.

The clash between the Flashes, which were imbued with magical power, seemed to produce sparks.

The sparks rained down on the garden of the mansion, but there was a black light mixed in with the sparks.

Fuuka glared at Rinho.

"That vibe —— is just like that of that inhuman being called Farabal!!"

Farabal, who called himself the Demon King that Liam once destroyed, and Rinho now radiated the same atmosphere.

School of One Flash (Issen-Ryuu) is originally a swordsmanship used to protect the weak from non-humans.

It was a contradiction that she possessed the same negative energy as non-humans.

Rinho opened her mouth like a crescent moon and began to laugh.

"If I can be strong, I don't care if I fall from human beings——I will become the strongest swordsman."

Rinho's Flash becomes more intense.

Fuuka responded by unleashing a Flash too, but she was gradually pushed back.

"You've fallen that far!"

Fuuka shouted at Rinho.

Rinho must have noticed her anguished cry, that she didn't want her sister to go over to that side.

But then Rinho's expression went blank.

"——Are you telling me to watch you guys' backs? How can you possibly understand how I feel when others have gone on ahead of me and left me behind?"

At that moment, Rinho's Flash became sharper.

The power of each blow also increased, and one after another, Fuuka's Flashes were being blown away by the force.

Unleashing Flash, Rinho kicked the ground and closed in on Fuuka.

As she got closer, Fuuka drew her sword.

"I'll bring you back!"

Rinho says.

"If you can do it, you should try it."

Just like that, Flashes was fired all around the two of them, destroying the mansion's garden.

Sparks flew violently as the two drew their swords and slashed at each other.

Yasuyuki, who was watching the scene behind Fuuka, was too scared to move.

"You two, stop it! Rinho-nee-san!!"

Yasuyuki called out to Rinho, but his voice didn't reach her.

Rinho swung down a blow that pushed Fuuka to the ground, where she caught it with two swords.

"What's wrong? You kept talking like you'd bring me back, but you can't do anything. You are lower than me after all."

Looking down at Fuuka, who was lying on her back on the ground, Rinho was proud of her victory.

Fuuka's Flash grazed Rinho's cheek.

It left a small wound, and a small amount of blood was seeping out.

Fuuka grinned.

"If you get too cocky, you'll end up suffering."

Fuuka kicked Rinho away, then quickly stood up and readied her two swords.

Rinho touched her cheek, then looked at her bloodstained palm.

A chill ran down Fuuka's spine when she saw that sight.

Rinho's gaze shifted from her palm to Fuuka.

"——Kill"

It was a line she'd heard many times before, but this time it was laced with murderous intent.

Fuuka quickly took a defensive stance, but perhaps she was just a little too late, as her entire body was slashed.

She had just barely managed to protect her vital points, but blood was spurting from her limbs.

Rinho, who was bathed in the returned blood, was smiling.

Fuuka looked at Rinho's changed appearance with a despairing face.

"Y-You——"

Fuuka collapsed to the ground and tried to get up, but Rinho stepped on her head.

Rinho spoke in a low, cold voice as she prepared to bring her sword down on Fuuka.

"Bye bye"

With eyes that had lost their light, she was going to kill Fuuka, whom she had grown up with as a sister —— but then.

"Stop it already!"

Yasuyuki jumped out and covered Fuuka as if to protect her.

Seeing that, a little light returned to Rinho's eyes.

"Yasu——yuki?"

"Rinho-nee-san, you've taken it too far. You don't have to do this much!"

After being denied in a strong tone, Rinho shook her head.

She probably couldn't stand being glared at by Yasuyuki.

"No. As a swordsman――I-I――"

There seemed to be a hesitation in her heart.

Yasuyuki's words were still reaching her.

However, sensing someone's presence, Rinho turned around.

"I'm home~ Wait?! Why is the garden so messy?! I'm sure my wife will scold me for this!"

Yasushi has also returned to the mansion.

Rinho was visibly upset.

"M-Master (Shishou)——Kuh!?"

Not wanting Yasushi to see her in this state, Rinho jumps over the mansion's wall and runs away.

When Yasushi ran to Yasuyuki and Fuuka, he was surprised to see her covered in wounds.

"Hey, what happened, Yasuyuki?! And who attacked Fuuka?!"

Fuuka did not know what to say.

Rinho had fallen as a swordsman, and that she had been defeated.

However, Yasuyuki is different.

"Stop Rinho-neechan. Otherwise, something terrible will happen."

Yasuyuki begs Yasushi to stop Rinho.

Yasushi is stunned to hear the request.

"——Heh?"

After defeating Fuuka, Rinho wandered around aimlessly.

As she was doing so, she heard a commotion.

"I can sense senior disciple (anideshi)'s presence coming from over there."

Is something going on? Feeling a bit curious, she went to have a look, and found Liam punching Edward, sending him flying.

From Rinho's point of view, who was watching the scene, Edward had failed as a swordsman of School of One Flash (Issen-Ryuu).

Even Rinho, who had fallen into darkness, did not unleash Flash at her master.

And yet, he fires Flash at Liam and runs away.

"A~Ah, this is grounds for excommunication. Would senior disciple (anideshi) punish him?"

Rinho watched with a grin, but then she noticed something.

Liam is not releasing a single flash.

Edward was no match for Liam in the first place.

If he wanted to kill him, it would have been quick, but he went to the trouble of dealing with him with his fists.

Rinho feels betrayed.

"My senior disciple (anideshi), who was an ideal School of One Flash (Issen-Ryuu) swordsman, is just a parent in the end. A~Ah, I feel like I'm watching a farce."

Then, even Ellen jumped out.

It may be to protect his cute disciple, but from Rinho's point of view, she couldn't watch it.

And what's more —— she couldn't bear to watch Liam end the commotion without punishing Edward.

"It's too lenient. You are too lenient, senior disciple (anideshi)."

Unable to contain herself any longer, Rinho found herself stepping out in front of Liam and the others.

When Rinho appears, Liam and the others become more vigilant.

However, Rinho's eyes were fixed on Liam.

"Bringing parent-child affection into the School of One Flash (Issen-Ryuu), my senior disciple (anideshi) has become quite soft-hearted."

Brian (´・ω・`) "It's definitely a plus when you think about the work, but it's hard supporting Yasushi-dono."

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