This story is a sequel to Deer Me: Black Snow

At ages twenty-four and twenty-two respectively, Stelimus and Copper Blossom have become the new king and queen of the Tundran Deer, but it isn't without difficulty. Not only is their inexperience in such an important position impactful, but also because Anglacite's venom still courses through the minds of the deer who refuse to acknowledge a union between deer and pony-song and the death of such an 'eternal' figure. Unfortunately, Stelimus' mother remains locked in the laboratories and Grimliss is the only one that can keep the order as an advisor. Without Grimliss, Stelimus fears what might happen to him and his 'queen'.

Things don't seem to get better when the god-king invites the rulers of Equestria, creating more tension amongst the deer. An unexpected and as-of-yet unknown group arrives at the same time, surprising everyone with one bit of information:

Stelimus and Copper end up traveling over seas to a land untouched by pony and deer and touched by a miasmic aura bizarrely familiar by Stelimus.

Cover art by Mix-Up.

EqD page here

A 47 year-old man named Gregary is sent to the hospital and put into an artificial coma after collapsing in a store and sees himself being reborn in a beautiful winter wonderland to talking deer. Of course, he doesn't realize it, but he's born to one of the most important families there, and the Deer lands sit next to the Crystal Empire of the ponies, which Gregary is unaware of.

How unfortunate it is, then, that he already had developed hearing and the first thing that reaches him is the word 'betrothal'. 'Who are the unlucky ones', one would wonder.

Now he must live through the life of a young stag with many employees surrounding him and a village that looks like it's in Christmas all year. Strangely, the adults and elderly look at him with a disconcerting gaze. Is it because he doesn't act anything like them? Maybe he's too open to the idea of meeting other races. Who knows? This hallucination is likely to prove loaded with amusement, and Gregary intends to take advantage of it until it ends. Something forbidden stretches towards the northern lands, however, in search of their vengeance on one that yet lives and another that no longer is, and this might be the last time snow shines like a diamond.

Cover art by Mix-Up. Also here