The Guardian Friend (Bumblebee x Male Witwicky Reader)

Following the events from London in 2017, Sam and Carley's son Y/N was leaving for University. Their son has persuade on his liking for technology and has gotten a bachelors degree on Technology, eventually Sam and Carley has never seen Bumblebee for so long and their son thinks he cares more on Bumblebee instead of him.
Meanwhile in the Autobot HQ, The Autobot's long forgotten soldiers Dino/Mirage, Roadbuster, Topspin as well with Lennox and Cade are full reunited again, Bumblebee learned that Carley and Sam had a son who was in University. Little did they thought their mission was over.
But to their surprise, the war wasn't over yet. Quintessa has survived Bumblebee's blast and was hidding among the humans, plotting her plan to destroy Unicron and earth again, she went into Cades old scrapyard and resurrected Megatrons Minions as well with Starscream.
As YN found a cybertronian artifact, he wasn't aware that it held the key to something, and now he is the target to Quintessa.
What will happen next?