Everyone in Fairy Tail was looking in awe and shock as they saw a large man in green armour, Mavis jumped off the bar and walked to the Doom Slayer as she did, she had to look up and he had to look down to her

Mavis : "hello there its nice to meet you, my name is Mavis Vermillion"

Vega : "hello miss Mavis, I am Vega The Slayers personal A.I"

Mavis : "A.I does he not want to talk"

Vega : "no, as I previously stated to the other group, the Slayer does not speak"

Mavis : "I..I see well welcome to Fairy Tail Mr Slayer"

Vega : "The Slayer wants you to call him by the name Y/n"

Gray : "Y/n what kind of idiot gave you that name"

Vega : "it was Miss Wendy that gave The Slayer that name"

Gray looked at Wendy who was about to cry

Wendy : "I'm sorry"

As Gray tried to cheer her back up Mavis informed Y/n that they ate going to hold a meeting with some of the guild leaders for different guilds that are still trying to fight the demons, after agreeing to attend the meeting which will be held in a few days, just then an alarm went off everyone ran out side and Levy ran to them

Lucy : "Levy what's going on"

Levy : "there's an army of Demon's heading to us"

Lucy : "WHAT"

Everyone ran to the gate to see an army of Demon's heading to them

Wendy : "there's so many of them"

Sting : "how many are there"

Vega : "they are 50 possessed, 30 Recenant, 30 Cacodemon, 20 Hell Knights, 20 Hell Guard, 20 Baron of Hell and 3 Cyber Demon's"

Mavis : "everyone get ready to fight, get all those who can't use magic and children to the guild"

As they all began leaving they suddenly stopped and turned when they hear a chainsaw starting up, they all turned around to see The Slayer walking towards the army of Demon's

Wendy : "Y/n where are you doing"

Vega : "The Slayer said for everyone to go inside and close the door"

Natsu : "what about you"

Vega : "The Slayer is more than capable"

As some of them wanted to stay with Y/n

Mavis : "let's go everyone"

Erza : "Master we can't leave him"

Mavis : "we have to trust him"

After a bit the group all tan back in and closed the gate, as the gate close cutting the view of the army and Y/n he turned and faced the army

Y/n(mind) : "Rip and Tear"

Inside The Walls P.O.V

After the gate shut they set up some defensive barriers close to the entrance of the gate just incase

Lucy : "do you think he'll..."

Lucy was cut off by hearing a lot of gun fire, explosions and screams coming from the demons, after a few more minutes of hearing what sound like a war out side it suddenly got quite which worried them

3rd Person P.O.V

As everyone was looking at the gate it suddenly started to open everyone got ready to fight, but their eyes widen as Y/n walked back in holding his shotgun

Y/n walked up to Mavis who looked surprised

Vega : "the demons have been eliminated, there is no need to worry anymore"

Everyone looked shocked and ran out the gate, when they did their eyes widen as the saw the land littered with bodies of dead Demon's everywhere

Gray : "h..he killed them all"

Elfman : "he's a real man"

Lucy : "I guess we know whys he's called The Slayer now"

After everyone calmed down they all headed back as they did Mavis realised Y/n had no place to sleep, Mavis asked Lucy if he could stay with her until they sort out everything and she said sure as Y/n and Lucy headed to her house

Vega : "miss Lucy thank you for giving us a place to stay"

Lucy : "it's the least I could do after you saved us"

Vega : "but The Slayer has 1 question"

Lucy : "what's that"

Vega : "why are the girls currently following us to your home"

Walking behide Lucy and Y/n are the girls from the sleepover, Lucy told Y/n that due to the incident that just happened the groups from other guilds would have to leave tomorrow instead of today, so they wanted another sleepover

Timeskip

After they got into her home Lucy said the girls will be in her room, and he could sleep on the couch

Lucy : "if you need anything my room is right there"

Vega : "thank you once more Miss Lucy"

After Lucy headed back into her room with the girls Y/n laid down on the couch which was small compared to him

Timeskip

As Y/n laid on the couch trying to sleep for the first time in a while, we see the living room door slowly opening and the girls slowly walked towards Y/n trying to not make a sound or it may wake him

Wendy : "that's doesn't feel right you guys"

Lucy : "I know it doesn't but are you curious about what he looks like under than armour"

Wendy : "Carla your with me right this we shouldn't be doing this"

Carla : "the children is right it's wrong to invade other people's privacy, but I am sorta curious on why he never takes his armour off"

After a bit Wendy gave in and the girls stood over Y/n's body, after a bit Chelia reached for Y/n's helmet, but as she did Y/n's hand shot up and grabbed her arm

Vega : "Miss Chelia The Slayer would like to know what you are trying to do"

Chelia started panicking and gave away that they wanted to see what he looked like

Y/n(mind) : "is that it..*sighs* let's get this over with"

Vega : "The Slayer asks you that you don't speak about what your about to see"

This confused them as he stood up and let Chelia go he then reached up and took his helmet off, when he did all they girls eyes widen and their face turned red before running out the room and full speed Y/n just stood there confused at what happened before looking in a mirror

Y/n(mind) : "why did they run..."