26 years old woman

"My name is Itsuwa Hirofumi." 

"My name is Itsuwa Mio." 

The brother and sister introduced themselves, especially after Masa introduced himself politely as an honest and respectable young man. Mio was even ready to stand up, but Masa quickly stopped her. "It's okay. You don't have to force yourselves." 

Even with just a glance, Masa could tell that Mio's body was extremely weak, and it was worse than he had imagined. According to the data that he had read, her weakness started being apparent in her mid-teens, but from the age of 20, she was confined to a motorized wheelchair. Even with the slightest of bodily exertion, she became exhausted. Her appetite was also small, which meant that she didn't get enough nourishment, which made her body weak and in a vicious circle. 

Due to this, even though Mio was 26, her figure was undeveloped, especially her chest area, which only showed a slight bulge, and probably the word "flat" wasn't even an exaggeration. Her hip area was also as thin as that of a young girl's. 

However, while it might sound like a strange reason, all strong magicians were naturally attractive, so despite appearing like a young girl despite being 26 years old, Mio's appearance was like that of a luxurious western doll, extremely exquisite with a fragility that made many wish to protect her. 

Yet, Masa had seen a lot of beautiful women, and he had just returned from Maya's place, so he was calm. 

However, watching Masa so close up, Hirofumi and Mio were in a daze, especially when Masa's appearance could affect both genders, and also had this special aura that made anyone feel a good impression of him, and easily aroused other's awe toward him. 

Masa was too lazy to stay low-key, and being low-key would always be underestimated by others, so he usually used his Supreme King Haki, developing it so it could create a special passive aura that could cause people to realize that they were two different species. 

Probably, in their eyes, he was like a king, a hero, or other exceptional existence that would subconsciously bring respect and worship when they saw him. 

Naturally, it was impossible to defend against this effect, especially when this wasn't something that targeted or tried to harm others. Instead, it just made others feel that he was different and special. 

Why did he do all of this? 

It was because Masa was tired of a meaningless conflict, especially when he knew how young he was. Due to his age, others would underestimate him as he lacked experience and other reasons, even if he came from the Isshiki family. 

Why do most protagonists encounter trouble? 

Wasn't it because their opponents never thought of them as opponents, and they were underestimated? 

If their opponents noticed how special the protagonist was, then those opponents wouldn't do anything and would try to search for a method that wouldn't hurt each other, as the benefit that came from fighting wasn't much or might not be beneficial at all.

This is similar to the war since instead of bloody violence, most of the war happened within the table of the negotiation, so the result of the war wouldn't cause much damage to the participants. 

If one could solve all the troubles by talking, then why fight? 

Masa had always used this aura so no one would think twice about messing with him, and along with the status that came from his reputation in the Invasion of Sado (2092) and also as a member of the Isshiki family, he was simply that arrogant young master who was fawned by many on the most novels instead of the protagonist that would attract trouble everywhere and fought those who had underestimated them. 

Due to this, even if Hirofumi was quite narrow-minded as he often compared himself with others, he didn't feel jealous or even a bad impression of Masa, who was younger yet had better achievements than him. Instead, he understood why Masa was better and accepted his defeat maturely. 

However, for Mio, as she was the opposite gender, it had a different effect, and because of this, she stared at him for a while and did not wake up until Masa started to talk with her and her little brother politely, which gained their good impression of him, thinking that Masa was a good young man. 

"I will leave you two. If you need my help, please call me, okay?" 

Regardless, Hirofumi thought that Masa needed a quiet environment for the treatment, so he left Masa and his older sister, Mio. As for thinking Masa might do something to Mio, he had never thought of that possibility at all, considering Mio was much older than Masa, and Masa also had a fiancee. At the same time, this therapy might also be part of the secret of the Isshiki family, so he thought about leaving since he didn't want to mess around with the Isshiki family. 

"..." 

While Masa was speechless by Hirofumi's "understanding," he decided to focus on his job first. "Before we start the treatment, can I check your body first?" 

"Sure, what should I do? Do I need to take off my clothes?"

"...no, it's fine. You don't have to. Just give me your hands." 

"...okay." 

Why did it sound like you were disappointed? 

Yet, Masa pretended not to notice anything and just held Mio's hand softly. Weak and cold, this was his impression, and he also knew how weak her body was. 

While it was subtle, Mio could tell that Masa was observing her body, which made her body slightly hot for some reason, as it was her first time to have someone as charming as him observe her so closely like this. She should have gotten used to letting her body be seen due to the treatment that she received after her body weakened, but even so, it was her first time being treated like this, and for the first time, someone looked at her normally instead of with pity and regret.

It was as if Masa was truly confident that he could make her better, which made her appear a bit helpless since she was afraid. 

Afraid of what? 

She was afraid of having an expectation as she knew well that she would die early, especially as a Strategic Class Magician; she was expected to be ready for any emergency in the case of a crisis that appeared in front of the country. 

In such a situation, it was natural for her to expect herself to die earlier than anyone, especially with such a huge burden on her small body. 

If there was a wish that she had, she just wanted to see her little brother happy as he was the only one who was there to be by her side all the time. If possible, she wished to see him have a good wife and see her niece and nephew before she passed away. 

As for her happiness? 

The moment Mio became a Strategic Class Magician and had a weakened body, she knew that she shouldn't have an expectation to fall in love, have a husband, or even give birth to a child. 

Still, if possible, she wanted to live a little longer, she thought, since she felt like... she might experience something that she had never expected after this. 

"Okay, I will explain the treatments to you." 

"Yes, Doctor." 

"...don't call me a doctor. I am not even one." 

"Then, what should I call you?" 

"You can call me Masa." 

"Okay, I will call you Masa. You can also call me Mio, too, Masa." 

"...is that okay? Aren't you older than me?" 

"Do you want to call me Onee-chan, too?" 

"...isn't it supposed to be Onee-san? Why Onee-chan?" 

"Fufufu... it's more fun that way." 

"Then, I will call you Mio-nee. Is that okay?" 

"Um." 

Despite her weak body, Mio's smile was so radiant. 

Still, even so, Masa explained his treatment professionally by using a bio-electricity to stimulate his muscles and, at the same time—

"...you will cook for me?" 

At the age at which all the foods could be prepared immediately with a machine, Mio was surprised that Masa would prepare food for her by hand. 

"Yes." Masa nodded and said, "This food will be a great help for your health, so please prepare the ingredients for me." 

"I will do that." 

Similar to Masa's family, Mio's family didn't lack money, especially when they had just gotten a great business from the project of the Isshiki family. Moreover, no matter how rare and expensive the ingredients were, it was just a small consumption, especially if her health could be improved. 

Now, why did Masa decide to cook? 

It was all due to the new ability that was gained by Masa of DxD, which would be explained after this. 

Regardless, his relationship with Mio continued as he helped her with therapy, staying by her side until it was his time to officially become a high school student. 

Spring had arrived, the cherry blossoms had also bloomed, and it was also the season to welcome the new students and new term for every student in this country. 

Masa was also ready to go to school; Masa and Airi talked to each other from the video call, wishing each other success on their first day as a high school student. 

"Good luck, Masa." 

"You too, Airi." 

"By the way, I will go to you on the weekend." 

With a shy smile, Airi asked, "Is that okay?" 

"Sure." 

Masa was full of excitement, thinking that it was the time, and because of that, he had been in a state of excitement and wishing for the weekend to come as soon as possible, yet when their calls ended and he planned to go to the school, someone unfamiliar suddenly appeared at the entrance of his house, which was located on the side of the headquarters of the Isshiki family in Tokyo.

"You are?" 

"Nice to meet you, Hiiro-sama." 

Despite a stern and professional expression, which would intimidate any man from approaching her, the young woman was beautiful and had this willowy and graceful figure that made her charming on her own. 

"My name is Ichihara Suzune. I will be your caretaker from now on." 

"....."

Tilting his head, Masa realized that his existence had changed the plot greatly, but to learn this change, one could only understand that later, especially when it was the turn of Masa of DxD, who was about to explain why the foods that were prepared by him would have a great benefit to Mio's health. 

So, at this moment, it was the time for Masa of DxD to appear, and at the same time, he was staring at the Boosted Gear that he stole from Issei, and he had an impulse to devour this Longinus. 

---

Tomorrow is DxD!