Yn is a atlas soldier and in a relationship with winter schnee who was general ironwood second in command sometimes we don't go on dates much because of the Grimm and white fang and Roman and his goons we understand that but we both weren't busy we go on a date or just cuddle together and watch a movie or go somewhere romantic.

Yn started seeing less like Yn knew they had a day off  or two from work Yn knew winter schedule but it seems she wasn't at our apartment

Yn:she must be busy the general must've gave winter more work

Yn sees a paper on the kitchen table it was a note from winter

Winter:dear Yn if your reading this and I'm sorry for this the reason you haven't been seeing me in our days off because...I've been cheating on you with
clover the leader of the ace operatives I'm sorry and and if you look in the apartment more my stuff not in the apartment I moved in with clover I'm very sorry you are a smart and handsome man but...I need someone more advanced than you I hope you find someone special in your life

Sincerely winter schnee

As Yn finished reading the note Yn is shocked that winter did this as Yn look in the apartment to see winter stuff gone

Yn:winter she really did it

Yn packed up his things before he left he put his badge and hate on the table and left the apartment as Yn got on a air craft Yn left atlas to start a new

Winter pov

After leaving Yn she heads to the apartment to see Yn stuff gone as she sees Yn soldier hat and badge as she runs in the apartment to see if Yn was still in the apartment but he was gone as she told the general that Yn left as ironwood told winter and the ace operatives to find him

??? pov
In a forest Grimm bodies were just destroyed like something or someone run through them as a person in white uniform was on top of dead Grimm

As the person left to head back to a town the person lived in as the town was peaceful no Grimm,white fang,just people living there lives as the person saved the town a bunch of times the person went to his house and took of his mask to reveal yn

Yn semblance speed force it allows Yn to become the fastes person in the all of remnant

As Yn here's something outside it was a atlas airship reveals to be winter and the ace ops as Yn put back his mask on and went outside

(Gs - Godspeed)

Gs:what is atlas doing here this town has nothing you want or need

Winter:actually we want you Godspeed

Gs:why

Clover:general ironwood like have a word with you

Yn:I'm not leaving this town

Winter:then will take you by force

Yn:if you can catch me first

In a plink of an eye Godspeed was gone

Harriet:where did he go

Out of nowhere Godspeed slaps winter making her slide on the ground

Clover:winter

Clover tries to go to her but gets punched in the face making him slames to a tree

Godspeed looks at the rest of the ace ops 

Godspeed:show me what you got

The rest of the ace ops charge at Godspeed

[There should be a GIF or video here. Update the app now to see it.]

After Godspeed defeating the ace ops

Godspeed:that was dramatic

Godspeed looks at winter

Godspeed:I've heard from someone who spoke highly of you winter schnee

Winter:who was it

Godspeed:his name was Yn ln

Winter eyes widen

Winter:where is he

Godspeed:he's no longer with us

Winter:you mean he's

Godspeed:dead yes very much so after he told me about the note you wrote he was devastated he had nothing to lose no family or friends or lover he ended his life he couldn't handle the loneliness anymore so he kill himself

Winter tears up

Winter:Yn I'm so sorry

Godspeed:saying sorry won't bring him back you broke his heart you are the reason he's dead

Godspeed:now take you and your team and leave never return here huntsman/huntress and atlas are not allowed here so leave if you return here again you be in a body bag next time

Winter and ace ops leave the town

Winter:Yn I'm sorry

as Yn return to his home and took off his suit then got something eat  then took a shower finally went to bed

Epilogue

After revealing that Salem couldn't be killed by ruby when she sent that message to everyone in remnant but it made Yn think that if she can't be killed but she can be stopped killing her would be no point as Yn has an idea to take her to another universe where she stays permanently

Yn runs to atlas as Yn sees Salem going to the atlas academy Yn grabs her bridal style then got enough speed to open a portal to a world were it's like dungeons and dragons and left her there as Yn return to remnant as Yn sense powerful aura in woman with Grimm arm as Yn phases his right hand as it goes in her chest as Yn takes out an orb it was from the fall maiden power

Yn then knocks out cinder and run to shade academy and told the shade headmaster to protect it as Yn run back to atlas to destroy the remaining Grimm after he was done he head back home to rest and get some food in his belly from all that running

(Next cheater
Cheater cinder x male reader)