Last Aid to Humanity

Between the two trees was a hammock, and Ars lay there reading manga.

"Done. With this, I have read all the manga in Japan."

Throwing the manga onto the ground, he looked up at the dark sky slowly brightened by the morning sun.

"It's been 15 years that I've lived in this world, and until now everything was fine. The Main God Room no longer sends people on quests to this world. It's a shame, though I still want to kill some participants and see what kind of abilities I can acquire."

What Ars didn't know, the main reason the Main God Room didn't send any other participants was because of his existence.

The Main God Room has detected a powerful presence that should not exist in [Dr. Stone] world. Therefore, even if it was a good world to send low level participants to gather experience, because of Ars's presence during these 15 years, the [Dr. Stone] world has been crossed off the list.

"Again, Uncle littered, father said that paper and plastic waste take hundreds of years to be destroyed by the soil. Therefore, this type of waste must be burned."

A grumbling young girl's voice could be heard below.

"Good morning, Ruby, you are up very early."

"Good morning, uncle."

Ars looked down and saw a 14 year old teenage girl.

After several years, Ruby has grown into a beautiful and charming girl.

"W-what's wrong? Uncle's gaze is very scary."

Stared at by Ars, Ruby became embarrassed and didn't dare make eye contact.

"Nothing, I just feel like it goes by so fast. Unknowingly the little girl has transformed into a pretty girl. Fortunately, you inherited your mother's genes, Lillian. If it's your father's genes---."

"Ars! Don't talk about other people behind his back."

Before Ars could finish speaking, Byakuya appeared angrily.

"I'll help mom prepare breakfast."

Ruby rushes away after seeing her father coming.

"That girl… She doesn't even say hello to her father." Byakuya shook his head with a wry smile.

"She's in puberty, her rebellious attitude is very normal."

"You know quite a lot, Ars. Have you ever had children?"

"You don't need to have children to know that, just read a book and you will gain knowledge."

Ars rolled his eyes at Byakuya and his tone was very lazy.

"Hahaha... Not everything written in a book can match experience. Maybe you should find a partner and raise children."

Standing next to the hammock, Byakuya laughs, and after stopping laughing, he glares at Ars.

"I do not approve of your relationship with Ruby."

"Tsk, do you think I'm a pedophile? If I want to find a lover, the most basic requirement is that the woman be immortal like me. I don't want to go through the experience of burying my woman."

"I hope you can find the ideal woman who can accompany you forever."

"Hopefully so."

The two men's conversation stopped, they both watched the sun rise from the east.

"By the way, how is Shamil?" Ars asked casually.

"He is fine after taking the medicine. Thanks to the medicine you gave, his pneumonia isn't too bad and he's slowly recovering."

Byakuya is very grateful for the presence of Ars by their side. Otherwise, things would not have gone as smoothly as they do now.

"Today I will go."

"Hah?"

Byakuya turned to look at Ars.

"Go? Could it be… Leaving this world?"

"Yeah, I've lived here too long. The original plan was for me to leave immediately after seeing how you were doing, but I ended up staying here for 15 years."

"Have you told the others yet?"

"Not yet, only you know."

"I see... Ruby will be very sad when she hears the news of your departure."

Byakuya wasn't trying to persuade Ars to stay, he already knew the other party would leave sooner or later, it was only a matter of time. Living on this island for 15 years and protecting it from various natural disasters is already a blessing.

"I hope your trip goes well, don't let us seniors influence you."

Returning to his cheerful demeanor, Byakuya laughs while patting Ars on the back.

"What's the elderly, I'm older than you." Ars pushed Byakuya's hand away.

"Appearance hasn't changed, you always looked like a young man in his 20s, whereas I have become an old man. From an appearance point of view, I'm older than you. Ha ha ha ha..."

"Whatever you say."

Getting off the hammock, Ars walked forward.

"You're not leaving now, are you? At least let us have a farewell party!"

Byakuya worries that Ars will leave without telling everyone.

"Don't worry, I'm going to take care of some matters, I won't leave without saying goodbye."

Waving his hand, Ars' figure disappeared before Byakuya's eyes.

"Sigh~ The day has finally come, I didn't know Ruby's reaction when she found out."

As a father, Byakuya is aware of his daughter's feelings for Ars.

It wasn't an ordinary feeling between acquaintances, but rather love.

He had repeatedly warned his daughter not to have feelings for Ars, because he knew it would be impossible for the two of them to have a romantic relationship, especially Ars.

After 15 years of interaction, he finds Ars slowly becoming indifferent and apathetic.

That doesn't surprise Byakuya, it's a normal thing when someone lives too long. Because that person has experienced many things, everything becomes boring in his eyes.

Staring at the villagers starting their activities after sunrise, Byakuya prays.

"God, I hope Ars can find a woman who can accompany him in his eternal life and not go crazy from loneliness."

...

Leaving Treasure Island, Ars visited all the underwater volcanoes in the Pacific Ocean.

In the span of 15 years, he has faced disastrous earthquakes and volcanic eruptions, which caused tsunamis.

If it weren't for him, there would be casualties on Treasure Island. Before leaving this world, he at least wanted the remaining humans to develop without having to worry about natural disasters.

It was impossible for Ars to suppress all the volcanoes in the entire world, but if it was only around Treasure Island, and the Pacific Ocean, it would still be possible.

Deep in the Pacific Ocean, Ars sealed the last volcano.

(My work is done, at least this volcano won't erupt for 5000 years. By then, humans will have restored civilization, the rest let them deal with this matter.)

He remembered that the main plot begins 3700 years after the petrification of mankind, it has been 15 years since the petrification tragedy, meaning that there are still 3658 years left before the plot begins.

(I have given 1300 years for humans to develop civilization, if they were destroyed by dozens of underwater volcanoes, it could only ignite them due to incompetence.)

What Ars did wasn't negate the volcano, but seal it.

According to his estimation, when the seal stopped working. All underwater volcanoes in the Pacific Ocean will erupt simultaneously, if that happens, it will cause the biggest tsunami in human history.

However, he believes that humanity at that time somehow managed to survive that cataclysm.

Even though he didn't really like humans because of his life experience in the fifth reincarnation, Ars believed in the potential of humanity!

(It's time to go back.) Ars thought about it and flew towards Treasure Island at Mach 25.