The 15 Keys was the acting title of a saga that has resulted in The 15 Keys Rising. The story takes place on Earth and deals with Zach dealing with his awakening powers and his coming destiny. This Romance, Adventure, Action, Sci-Fi story will answer questions asked by Fate By Blades and previous incarnations of this story. It is found on deviantART.The plot takes place in a core reality in which inter-universal travel has been developed, albeit over many universes at a time. As you can expect from a story which involves alternate realities this story is very Expy heavy, and uses many characters from other media.
Blocking Stops All Damage: An in universe version, if Monica relies on defense her cyborg body adjusts to take the blow properly. It was subverted as Zach and Hopey both are injured even if they block the attack
Chekhov's Gun: Monica said people with pink hair don't exist. Cue Lucy and Aelita
Curb-Stomp Battle: After his beserk button was pressed Zach DESTROYED the Organisation single handedly... literally.
For the laughs you should know his cyborg arm was not responding the entire time, unable to move
"How did you do that?" "We do shit... Shit's impossible!"
Oh Crap: "Is that her?" *Loud crack from a punch* "That's her... crap..."
Punch Catch: One of the ways that Zach defends before getting his sword
Put Him On A Bus: Averted. Originally it appears that Jeremie and the other lyoko warriors were just taken out of Aelita's back story, but we actually see, from her point of view, how it happens. Basically, Ulrich, Yumi and Odd were cast into the digital sea, and it was too much for Jeremie, causing him to spend so much time trying to retrieve them that when he was transferred into The 15 Keys Rising universe he straight up lost it and attacked Aelita.