(Y/N notices that his girlfriend Ashley had been distancing herself from him lately, and decides to buy something to impress her.)
Y/N: I hope she likes what I'm about to give her.
(As he goes to Ashley's house, he notices a pair of shoes besides hers.)
Y/N: Could this be... no...
(Y/N then goes to her room, and then he sees Ashley making out with Leon.)
Y/N: So that's why you've been distancing yourself, huh?
(The two stop making out and turn to see Y/N.)
Y/N: Of course you know what this means, right?
(Y/N is completely pissed, and ends up transforming into the most feared monster.)
Leon: WHAT THE FUCK IS THAT?
Y/N: (roars)
(Y/N starts rampaging and destroys everything on sight. Leon runs away like a coward.)
Leon: (to Ashley) NEXT TIME DON'T CALL ME, GOT IT?
(Y/N keeps going on a rampage and destroys anything and anyone in his way, but as the time passes, he starts losing consciousness due to using too much of his energy. As he passes out, he reverts back to his human form. Some mysterious figures pick him up and take him away.)
(Timeskip)
(Y/N is seen waking up as he notices he is in the Officer's Academy at Garreg Mach Monastery.)
Y/N: How did I get here?
????: We took you in here.
Y/N: Huh?
(Y/N turns to see the female students in the Officer's Academy.)
????: What's your name?
Y/N: Um... my name is Y/N.
Byleth: (giggles) Mine is Byleth
Rhea: I'm Rhea.
Manuela: Call me Manuela.
Catherine: Catherine is my name, I give my enemies the taste of my blade!
Flayn: I am Seteth's little sister, Flayn. I am so happy to make your acquaintance.
Shamir: I'm Shamir, and I like to punch arrogant nobles.
Edelgard: My name is Edelgard, and I blame the Crests for this brutal, irrational world we live in.
Bernadetta: I'm Bernadetta.
Dorothea: (flirty) Oh my, you look like a wonderful person. Is this your first time at the monastery? Shall I show you around? Ah, my name is Dorothea. Before enrolling in school, I was in an opera company at the capital.
Petra: My name is Petra. I have your support, you have mine.
Mercedes: I brought you here in my own free wil. I'm Mercedes, by the way.
Annette: You seem hungry. Can Annette here cook some turkey for you?
Ingrid: I'm Ingrid, and I won't give up on you so easily.
Lysithea: I'm Lysithea. I would watch out for the Aristocrats if I were you.
Marianne: I'm Marianne, and sorry if I don't talk much.
Hilda: I'm Hilda. How about you enjoy our company?
Leonie: I'm Leonie, and I can beat anyone here, even Professor Byleth. Not wanting to flatter myself, but... (smug) I learned with the best.
Hapi: My name is Hapi. I'm glad you're okay.
Monica: I'm Monica. I gave up on hope once, but now I have something important to me, I won't stop anymore.
Y/N: Nice to meet you, girls.
Girls: Nice to meet you two.
(The girls immediately fell in love with Y/N. He also told them about what caused him to become Godzilla.)
Y/N: I thought Ashley had loved me, but she proved she never had, because she made out with another dude.
(The girls get furious about it.)
Byleth: The nerve of that bitch...
Dorothea: She didn't deserve you anyway.
Hilda: Excuse us, we gotta go.
(The girls leave, completely determined to find and kill Ashley.)
(Ashley is currently seen flanked with some police officers since she's the daughter of the president. Unfortunately the girls from the Officer's academy come in, and the officers get scared.)
Officer 1: Damn... I'm not paid enough to deal with those girls.
Officer 2: Me neither. Do you see their weapons?
(The officers run away as the girls surround Ashley and cast a spell which shows projected images of Y/N making love to his new harem. This causes Ashley to cry, much to the girls' disgust as they finally decide to kill her. Afterwards they married Y/N.)
Girls: We love you, Y/N.
Y/N: I love you too, girls.
(They then traveled somewhere else to spend their honeymoon.)