In a world where heroism is measured by fame, rankings, and Quirks, peace is built on symbols... not truth. After restoring Cybertron and ending a war that lasted eons, Optimus Prime is granted one final gift by Primus-the chance to live again. Reborn as a human teenager, he awakens in the world of My Hero Academia, carrying the Matrix of Leadership and the memories of everything he once was. Now a student at U.A. High, Optimus must adapt to a society where heroism is commercialized, power defines worth, and justice is often performed rather than understood. Concealing his true identity, he walks among future heroes like Izuku Midoriya, quietly questioning the system they all believe in... and whether it truly protects those who need it most. But Optimus is not alone. Across the world, warriors long thought lost begin to reappear-Autobots and Decepticons alike, drawn into a reality that was never meant to hold them. Some seek redemption. Others seek purpose. And some... bring the war with them. As figures like Megatron, Arcee, Bumblebee, and others struggle to find their place, darker forces begin to rise. Shockwave's cold logic, Starscream's ambition, Tarn's fanatic devotion, and Airachnid's predatory cruelty threaten to shatter the fragile balance of hero society. And beyond them all... something far worse is coming. From the depths of the Void Dimension, a forgotten and fallen Prime begins to stir-manipulating events from the shadows, twisting allies into weapons, and setting its sights on the Matrix of Leadership itself. To it, Optimus is not a savior... but a false successor. As tensions rise and two worlds begin to collide, Optimus is forced to confront a question that has followed him across lifetimes: Can a true hero exist in a society that misunderstands what heroism really is... -or will he be forced to become the weapon he once was? The age of symbols is ending. A new era is beginning. This... is the Age of Primes.

This is a fanfiction about an ordinary human named William that is reincarnated as the legendary Warlord of the Decepticons, Lord Megatron himself. Now he needs to lead the Decepticons to reclaim Cybertron in his stead, armed with the Warlord's combat knowledge, abilities, his own knowledge regarding the Transformers Universe, as well as a system to help him. How would he manage to deal with the Autobots and their allies as well as other Decepticons... Read to find out! Note: This Transformers universe is a mixture of Transformers of mainly Transformers: Prime Universe and the IDW Universe as well as a few others, so things are a bit mixed up and I add a bunch of OC's. And the timeline is a bit mixed up.

After living a peaceful and somewhat slacker life Cale passed away in old age. Only to wake up as a child in another world. Cale was now Sam Witwicky and living a lazy life with his new parents. His parents were eccentric but let him do whatever he wanted. Of course it did not remain peaceful forever and when he became a teen a certain group of robots entered his life. Raon, Ohn and Hong were sparklings now and may heaven have mercy on anyone who dared to hurt them. Different species or not they were his babies. Now to tell his parents.