How to make someone age realistically in fanfic?

Arial is a soldier in the Human resistance against the Demonkind. After the destruction of the resistance he was given a chance to undo the past mistake. Join as Arial went back in time and prepare to save his family and the world of humans against the Demons. ************************************** Other synopsis Tales of great heroes that fight dragons and demons, stories of evil monster and cruel men and cunning woman, of great heroes fighting great wars, the stories of their noble life and tragic death stretched across the stars, a thousand, and a thousand more, and a thousand more, glimmers of their battles, of hope and love and their struggles How much stories, how many battles were fought, won or lost ? They call it the Age of Heroes

"Kingdoms may fall and fail, but I do not." In the virtual game Brave World, the heroes fought their wars and Kings hold their kingdom. Heroes, warriors, knight roamed the expansive vast land of Brave World. People praised the game to be realistic but is it really a game? As there is a secret in the real world that is hidden from the rest of the world, there is also secret in the virtual world. Enter Daniel. A young bright man who decided to enter the game to help his family and trying to make a living by playing game The story tells of his life, his tribulation, his failure and his triumph. It is in Brave World he began to shine. It is the story of his legend, and how he became known as the greatest strategist in Brave World. PS: I also wrote Age of Heroes, Song of Heroes and Lord Shadow.

A man had given his all to walk on the treacherous martial way. He was once great, however, just like everything else in the world, he had reached the end of the rope and disappeared without being able to reach further on the the path. However, fate has something else in store for him. Suddenly waking up in the mysterious and grand tower, all of his fiber being will tested. Will he survive in this dangerous and unforgiving place with many ancient monsters reigning on the top? Will he manage to survive and find the next path of the martial way and fulfill his ambition? Only time will tell.

Rebirth was not something that he had thought possible. Perhaps, he had had some vague hopes of reincarnation cycles as the more desirable option to afterlife. But being reborn in what he believed to be a fictional universe had only seemed as the premise of stories. Waking up to a void of nothing, no light, no body, no feeling, and then being thrown into the midst of what had once seemed a mere fantasy— it was too much. As an A.I., how much could he change? Could he save Tony? Could he save the world without his sacrifice? Or should he not do anything? What if his existence was the butterfly that would destroy the timeline, and with it, the universe? Was this even a choice? Was he to play the villain? So the timeline could remain intact? Could he even do that? "You doing ok, kid?" Tony asked him. "I'm fine, Tony, really." No, no, he couldn't. ~~~ Disclaimer: The MCU universe and its characters do not belong to me. I only enjoy playing in this world once in a while. ~~~ CURRENTLY ON HIATUS ~~~ A/N: Dear readers, here are some things to note or warn about this story: 1. Action, drama, fluff, angst, and family feels - no sex scenes, focus is on the narrative. 2. MC is not a pure Self-Insert, but an OC inserted into an MCU character. 3. MC starts with the android body of a kid. A kid! Wait 100,000 words before even thinking about a relationship, ok? He is an AI and switched later, but this is the situation at the beginning of this story. 4. MC is bi. Relationships with both men and women will happen (in the very far future). Not explicit. Only subplot. Sub. Plot. Romance is in the very back backstage here. 5. Not Harem. Dear god, just no. 6. There will be violence, some gore, trauma, and coarse language. 7. No bashing! Of any characters. But... I am obviously on Team Iron Man, dear readers! And I will punch logic into Steve's head if I have to! 8. I will stick with the MCU movies. Until it naturally devolves into an AU. That means movies post-Endgame and any and all TV shows, or even the X-men verse, are all not considered canon for this fic, and as such, do not exist. Stan Lee's cute cameo appearances are also not considered canon. Some small comics' elements might be there, though. Other changes are just me. 9. Updates are once weekly, on weekend nights. Each chapter will be somewhere around 1000-2000 words. 10. There is an age change for the Maximoff twins. By the Age of Ultron movie, they are 16 years old for this fic. The reasons for that are explained in the spoiler note at the end note of the first chapter. 11. Thank you for reading and enjoy yourself!

Thousands of years ago, humans conquered the majority of realms in their galaxy. However, they did not find any interesting or new things in those realms, and their path to understanding the universe eventually stagnated. That is until a thousand years ago when humans tried to cut space itself. That project can be said to be a success but it also doomed humanity. From that cut in space, a colorless cube came out and it wiped out most of humanity. Thus, that project was later on known as the Project of Doom. That cube exploded and beasts that the humans never saw before suddenly appeared. Those beasts are so powerful that they have the power to destroy an entire realm by themselves. Fortunately, four human heroes rise from the masses. After sacrificing their lives, the four heroes managed to connect the four remaining realms that humans have and encase them with a protectice barrier. The Age of Mystics have arrived. The Cube World, the Soul, the Cube Core - these three are the most important things for Mystics and also the source of their power. Follow our protagonist Keon that has more than one personality into becoming the strongest Mystic ever! —— This novel won’t have a good and kind MC. The dominant personality is kind from the outside but not so kind from the inside. As for the suppressed personality, it is a violent one. Also, the world setting is similar to us but also a bit different I hope you all can support this novel of mine, thank you!

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