It hadn't been too long since Natsuhisa Akira had come back from his long campaign in Edea. Technically, he had spent more time in that world more than he did on Earth so his decision to return had not been an easy one.

Not long after he returned however, the family who he looked forward to get back to had rejected his return and suspected him of being an impostor that eyed their a.s.sets since he was once known as the most talented eldest son. They even disrespected the person he wanted to introduce to his family as his wife.

Not long after that, the mana depletion condition that Lailah had been hiding was found out by him when she had fainted from exhaustion. This led him to move towards deep into the mountains and made the former hero take desperate actions to ensure his elven wife's survival.

Never did he expect that his actions would lead to meeting up with not only one of his predecessors, but also a young boy who unbelievably claimed to be his successor.

Kouzuki Kazuya, the boy was supposedly sent back in time wanted to return to Edea rather than avoid the conspiracy that led him to be summoned in the first place. He wanted not only to save his companions, but also to exact his revenge towards the people that not only killed him, but also made a joke out of everything Natsu had achieved in his time as a summoned hero.

Though Natsu had showed that he was against it, he was actually glad that Kazuya had shown determination that Natsu himself saw as close to an obsession. The fact that that Kazuya was willing to risk his life after already altering the tragedy he experienced in his previous life, was a testament to what type of character the boy possessed.

Not only did his apparent successor had shown such loyalty to his companions, he was also willing to save everything that Natsu risked his life for. This was more than enough to satisfy Natsu's willingness to share his wisdom to help Kazuya come back to Earth.

He thought about what he could do for Kazuya and his family since they had not only been lenient with his desperate mistake, they had welcomed him and Lailah like family members. The boy even went as far as designating a rich land that had been perfect for elves in the mountain he had acquired for himself.

"Do you think we should let them know about what you discovered after meeting with your family?" Lailah asked while the couple had been discussing on how to continue with Kyouko and Mei's lessons in magic.

"I'm not sure. We might just cause discord between the boy and his family since I don't think that such a thing would be an issue for him." Natsu replied. "Even I don't think it is such a big deal until I found out for myself."

"I believe that Kyouko has the right to know. Besides, isn't it about time you begin your lessons with Kazuya? He's been patiently waiting for a long time for your decision and you've already observed him more than enough already." Lailah teased him for refusing to admit that Natsu had indeed been overly suspicious.

"Fine… I'll be leaving my boss' lessons in your care then." He sighed. "But first, we should tell Kyouko-san about it…"

The couple met with Mei and Kyouko under the pretense of magic lessons. This was to avoid Kazuya from eavesdropping and give the two some time to digest the information they were about to be told.

"Is it a joint magic lesson this time?" Mei curiously asked. "I want to be able to jump silently on top of roofs or escape tall buildings like Aoki theatre quietly through the window like Kazu someday~"

"...umm before that, we need to discuss a few things Kazuno-san. Starting tomorrow, both you and Kyouko-san will be taking magic lessons from Lailah." Natsu announced.

"Does that mean that you finally decided to work with my son?" Kyouko was overjoyed at the news since Kayuza himself had mentioned that he wanted to learn from both Natsu and Tsuna to ensure that he would face less dangers when he left for Edea.

This was also one of the things Natsu had been envious towards Kazuya about. He was able to be completely honest about the unbelievable situation he was in. Although it took quite the amount of time for them to slowly be able to digest the mostly unfiltered part of the truth, Kyouko and Mei not only were able to understand, they also supported Kazuya despite their worries.

"Yes, but we believe that there should be something about going to Edea that you should understand, Kyouko-san." Natsu gave her a serious look. "I only discovered this fact when I came back from the trip."

"What is it?" though she appeared calm. Kyouko felt nervous since this must have been something that her son had not been aware of. His dream had ended before he returned according to him after all.

"Let me ask you a question? What do you think a family is? Is it limited to only blood relation? What would you do if you found out that Kazuya and you did not share the same DNA anymore?"

"That's a silly question." I gave birth to my son and raised him alone. "Even if his DNA says otherwise, the time we spent together is a bond that would even genetics cannot compare to."

"I see…" Natsu gave a sigh of relief.

"Why the strange question? Does that have anything to do with Kazuya's intention of going to Edea?" Kyouko curiously asked.

"Yes. That is precisely why Akira asked such a question." Lailah interjected. "What we learned after we came back was that after meeting with Akira's family, was that the results of the rest your world does to prove that one is related by blood will show a different result." Lailah told them of what they experienced after Natsu decided to take a DNA test to disprove his family's suspicion.

"I believe we already discussed that going to Edea is not something by choice but by chance. It is like the hero summoning in popular novels we have here, only in the case of reality, there are inevitable changes."

"Changes…" Kyouko felt nervous after hearing the word.

"Please be at ease Kyouko-san. I don't mean changes to Kazuya's personality or anything like that. If I were to say, there can only be nothing but good changes."

"What do you mean by that? Can you be more specific?" Mei took the initiative sine Kyouko had begun to show her habit of a.n.a.lyzing all the information she was hearing in her mind without care of her current situation.

"Being summoned to Edea is synonymous to receiving the blessing that would help anyone who is summoned face all the difficulties of living there. I initially a.s.sumed that it only involved elevating the abilities of the person who was summoned by granting them with an enormous amount of mana.

What I realized after thinking about it was that it wasn't only that. The person's resistances, immunities, physical prowess and overall abilities have been improved with their limits unlocked.

What I can surmise after coming back to earth was that although the amount of mana granted to the person travelling to Edea would be taken back, the improvements to their bodies would remain the same and the mana they had gained after the initial blessing would remain in with them once they return.

This brings us to the Earth's scientific aspect of the phenomenon caused by the blessing. It is my belief that with the blessing received when one is summoned to Edea, the body is improved to its optimal state in which even DNA is changed so that the person can evolve into a state that is should surpa.s.s a normal human being on Earth."

"Huh? Does that mean that Kazuya will turn into an elf like Lailah or something?" Mei grew a bit confused at his explanation.

"Let me put it in another way. Though mana on earth is so scarce that it is considered as an urban legend, Mei-san and Kyouko-san's const.i.tutions have improved and has been getting better as you get accustomed to more mana in your bodies right?"

"Well, yeah."

"It is the same principle only in a much grander scale. Enough to change his DNA to be changed to not be limited to be similar to the limits of his bloodline. The name blessing is fitting yet an understatement at the same time." Natsu explained.

"Is that why Tsunsan appears to be a lot younger than what his age is supposed to be?" Kyouko spoke up after hearing Natsu's explanation.

"Yes! I almost forgot about the most suitable example."

"I see…" Kyouko gave a sigh of relief. "If Kazuya is going to receive such a blessing then there is no reason to prevent him from getting it. Though I am worried about the dangers for him to be needing such a thing, I believe that with Natsuhiko-san and Tsunsan's help, Kazuya will be able to do everything he intended there with little difficulty." Kyouko gave Natsu a thankful bow. "Thank you for informing me of this and deciding to accept my son's request."

"P-please raise your head." Natsu was fl.u.s.tered. "Me and Lailah should be the ones who are thankful."

"What Akira says is correct." Lailah gave a bow. "He had regretted returning to this world after what he had experienced with his family. I am glad that we were able to meet people that lived up to his description about the inhabitants of this world."

Find authorized novels in Webnovel，faster updates, better experience，Please click for visiting.

"Lailah, you…" Natsu was taken aback by his wife's comment.

"Don't think you can hide it from me. You have always been worried about how your family has been especially because of their high expectations of you back when you met me. I just haven't spoken about it because I knew that there has been much in this world that you've longed for."

The two of them had already come to an agreement on how they could help Kazuya to not lose himself to the hatred he felt towards his enemies. Before they agreed to teach Kazuya with everything they knew, Lailah and Natsu had come up with various conditions that he needed to uphold once he arrived in Edea.

Some of them involved always prioritizing his own safety whenever he came upon a situation where even with his current prowess, the result would be unsure. While some involved giving several people involved in his revenge a chance by using his own advantage to prevent them from doing evil acts.

The two believed that since Mei and Kyouko were the ones closest to Kazuya, they would be able to help them with the conditions they would give in order to keep him from being consumed by hatred. While they wouldn't be able to tell them the whole truth, their help would prove to be indispensable because of their knowledge about Kazuya's personality.

"Hey! Wait a second!" Mei suddenly came up with a startling thought.

"Since everything about Kazu's DNA will change… doesn't that mean that he would technically be able to marry Kyouko!?"

.