Leaving the happy parents aside, whether Riser or Sona felt complex at that moment.
Riser naturally didn't expect to have his engagement right away the moment he had just divorced his former fiancee.
Sona was even more so since she didn't expect the fiance chosen by her father would be Riser, Rias's former fiance.
This... wasn't this too outrageous?
Should she marry the former fiance of her best friend?
If Rias knew all of this, what would she think?
Yet, nevertheless, while she couldn't accept it that easily, she didn't have that much resistance. His ability was obvious, and except for Rias, no one hated him. Even if he was a playboy, who wasn't a playboy?
Almost all the young male devils were playboys, and they were all playing with women.
If there was a difference between Riser and the rest, Riser was more competent.
However, Sona still had a hard time accepting all of this, and she also didn't want to agree immediately, even if she didn't really mind this engagement. After all, she was different from Rais since she knew the importance of this marriage.
Lastly, she wanted her man to be more intelligent than herself.
"Father, can I say something?"
"...what's wrong, Sona?"
Sona's father could tell that something was wrong.
"You should know my request for someone to marry me, right?"
"Then, do you want to stay single for the rest of your life?!" Sona's father was full of anger at that moment. "Or do you want to marry those scumbag weaklings?"
Riser was a rare devil.
He was powerful.
His potential might even reach Maou and become as strong as Serafall, the eldest daughter of the Sitri House.
If his daughter married Riser, then Lord Sitri didn't need to worry about anything.
As for Riser's playboy hobby, who wasn't a playboy in their youth?
Lord Sitri was the same, and he also could tell that Riser wasn't bad, especially when he divorced his former fiancee so decisively to maintain the dignity of his family.
Also, shouldn't his daughter talk about this matter in a more polite way?
Lord Sitri could see that Lord Phenex and Lady Phenex were frowning when they heard Sona's words.
Nevertheless, Riser asked curiously, "What kind of request?"
Sona then stared at Riser as she pushed the frame of her glasses slightly. "My partner should be smarter than me."
"How do you determine if your partner is smarter than you?"
"It's easy." Sona showed a charming smile, then said, "He must be able to win against me in the chess game."
"Chess game, huh?"
If it was a normal fight, even Sona didn't think that she was Riser's opponent, or rather, the results were obvious. Even if they didn't fight, she could tell that she would lose in a shameful way.
Still, was it worth it to work hard to get Sona as his fiancee?
He couldn't help but glance at Sona from the corner of his eyes.
She was beautiful.
She had black hair styled in a short bob cut and violet eyes.
Moreover, she had glasses.
She was wearing glasses.
He repeated this since it was an important point.
Her body was slender, lithe, and graceful.
The only problem was that her bust was just a cute B-Cup.
However, the rest had compensated for everything she lacked.
While many also liked the big ones, he didn't mind the small ones since they were more sensitive, but the original Riser's favorite was the big ones, and it was the reason why the original Riser was crazy about Rias.
However, at the same time, the original Riser wasn't a chooser, and to prove that, among his peerage members, some had petite busts.
"So, if I lose this chess game, you won't accept this engagement?"
"That's right." Sona nodded.
"Then, what if I win?"
"If you win..." Sona took a deep breath then said, "I will stop the school, then marry you right away."
"Even if we don't know each other?"
"Even if we don't know each other." Sona nodded. "I am different from Rias. I won't do anything stupid like your former fiancee did in your previous engagement. If you win against me in the chess game, I will be your wife immediately and start having children."
Then, she blushed and said in a low voice, "Then... I will try to love you."
"..."
Riser wasn't sure whether she was bold or stupid, but since she could say something like that, she should be confident in her chess game, but the words "try to love you" caught his attention right away. After all, unlike Rias, who didn't even give him a chance and hated him like he was the most annoying bug, Sona could say something like trying to love him even though they never knew each other except for being a mere acquaintance.
Moreover, he thought she was cuter than he had thought.
"What's wrong? You don't have confidence?"
Sona thought of his silence as a lack of confidence.
"No, the condition is so easy that I can't believe it."
"Oh..." Sona pushed the frame of her glasses once again, then stared at him calmly. "Do you think that you can defeat me in the chess game so easily?"
"You can think of it that way."
"How about we start right away? Let's see if you have the skill to back up your words."
Sona wanted to wipe this calm expression off his face right away.
"I should say the same."
"...."
Sona took a deep breath, then turned. "Follow me."
"Then, I will follow her first."
He made an excuse to his and Sona's parents before following Sona.
The parents of the two looked at each other before they also followed since whether this engagement could continue or not, everything would be decided in this chess game.
---
With everything determined, they went to the chess room, which was specially built on the castle.
"Tsubaki, help me to set up the board."
"Yes, Kaichou."
A bespectacled young woman with long, beautiful black hair and a well-developed body nodded respectfully before following Sona's order.
Riser said nothing and stood by Sona's side while looking at this young woman.
"She is my Queen," Sona said.
"She seems strong. Did she practice with a spear?"
Sona was surprised. "Yes, she practices with Naginata. How did you know?"
Riser only smiled but didn't say anything.
"...."
Sona took a deep breath, trying to calm herself. "When I win, I will have you tell me the reason why you know."
"Oh? Then, if I win?"
"Just do whatever you want. I will be yours anyway."
"...do you have that much confidence that you will win?"
"Yes." Sona nodded.
"Is that so?" Riser didn't continue to talk and waited until the table was set up by Sona's Queen.
Sona glanced at Riser, trying to find a single fault in it, yet unfortunately, she couldn't. The only thing that she could see was his handsome face and elegant hairstyle. He was also well-dressed, clad in a white, long sleeve shirt with a crimson tuxedo with black buttons, a blue ribbon, and brown shoes.
His bad boy that appeared before was no longer there.
Instead, this appearance fits her type well.
Though, she would definitely never say that since she was too embarrassed.
Then, when the table was set up, the two sat on their chairs face to face.
His parents and her parents, along with her Queen, stayed by their sides, watching the chess game between them.
"You can take the white pieces."
Sona gave him a handicap.
While it was only a small percentage, the white pieces had a higher chance of winning, and it was also the one who moved first.
"Thanks."
He didn't reject her offer since it was easier for him to win.
"Then, should we start right away?"
"Okay."
Then, the chess game to determine their engagement starts.
---
"Okay, let's start the marriage right away!"
"We can't waste any more time!"
The rest was obvious.
Riser won, and Sona lost.
Sona looked at the board with disbelief that even her glasses slid off from her cute, pointy nose.
However, both parents were in happiness since, with this, their marriage was clear, and they also didn't waste their time marrying their children to each other.
Only Tsubaki Shinra, Sona's Queen, was helpless and worried, but she didn't have a place to talk.
"Wait, isn't it too early for marriage?"
However, Riser was the one that was speechless since the marriage was too fast!
But...
"...you don't want to marry me?" Sona asked with a frown.
Why were you getting angry?
Did you not want to marry me before?
While he was helpless, he sighed inwardly before his eyes became tender, staring at his future wife.
"I don't mind, or rather, I am happy that I can marry someone as wonderful as you."
"...."
Sona blinked her eyes as she tried to hide her blush by pushing the frame of her glasses.
"...is-is that so?"
"..." Riser.