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The atmosphere returned to its earlier sword-drawn tension, with Rias and Sona standing face-to-face, arms crossed.

"If there are any orders, I hope I can have the right to decide Yang's actions, such as when I'm competing with you. As far as I know, what you want to do has nothing to do with this condition, right?"

That was Sona's condition.

She wanted to remind Rias of one thing: Yang is mine!~ Forever!~~

"Alright! I agree to that condition!"

Rias was a decisive person as well.

Who cared about the future? She would first take partial claim over Su Yang while Sona was soft-hearted!

"Without further delay, let's begin now!"

Rias directly took out all her remaining pieces.

Eight Soldier Pieces, one Bishop Piece, one Monk Piece, and one Knight Piece, for a total value of 19!

You had to know... a single Queen was worth only 9!

"Alright."

Su Yang extended his hand with a faint smile.

Well, I can't be bothered waiting another dozen days to naturally become an Intermediate Devil. I might as well advance today.

Ahem... as repayment for tricking you, I'll take care of that turkey for you~~

"Soldier... one..."

Under Sona's watchful gaze, one Devil Chess Piece merged into Su Yang's body.

"No reaction."

A ripple passed through Koneko's golden eyes.

"Soldier... one..."

"Soldier... three..."

Rias had long been mentally prepared for this outcome and continued placing Devil Chess Pieces into him.

"Soldier... seven..."

"Soldier... eight..."

All eight Soldier Pieces had been used! Yet there was still no obvious change in Su Yang! There was not even the slightest sign of Devil wings emerging!

"Hiss!~~"

Just then, Su Yang suddenly felt a wave of comfort.

He had advanced! He had become an Intermediate Devil!

A warm current of Spiritual Power flowed through his body... the automated systems he had set up throughout his body operated even more smoothly.

He was more than twice as strong as before! That was the difference between the peak of a Low-class Devil and an Intermediate Devil!

Not only had the total amount and quality of his Spiritual Power increased, but the number of authorities he could wield had also risen to three.

"Still no effect?"

Rias's expression shifted from complete confidence to uncertainty.

"Should we continue?"

Su Yang yawned. Since he had already reached the strength of an Intermediate Devil, he had no intention of continuing to fleece Rias.

His current strength was temporarily sufficient. Even against a Ten-winged Fallen Angel, he now had the capital to clash head-on; defeating one was not impossible!

"Continue!"

After hesitating for a few seconds, Rias decided to see this through to the end.

Sona had already paid the price of fourteen pieces' worth of value. How could she show weakness?

"Bishop Piece!"

"Monk Piece!"

"Knight Piece!~"

As Rias's lips twitched slightly, the three pieces merged into Su Yang's body one after another!

"Sona-chan!~~~"

At the same time, a lively voice came from outside.

"Hm?... Sister?"

Sona, who was extremely familiar with her Sister's voice, immediately recognized it as Serafall's!

Looking in the direction the voice had come from, Sona saw a Magical Girl flying through the sky.

The Magical Girl dressed in pink flew in from the sky and headed toward Sona.

"Bang!~"

Sona turned her head and drove an elbow straight into Serafall's abdomen.

But with Sona's strength, how could she possibly inflict any effective attack on Serafall? It was merely her way of expressing her anger.

"You used my Devil Chess Pieces without permission to reincarnate Yang-kun, and you still have the nerve to come looking for me, Sister?~~~"

This had already crossed her bottom line.

However, Serafall was the type who would cling to her younger Sister no matter how many times her Sister rejected her.

She immediately climbed up along Sona's outstretched arm and wrapped her arms around Sona's waist.

"W-wait... Sister?~~"

Her Sister was openly getting intimate with her again. Ah!~~ Sister, look at the occasion!~~