In the aftermath of the events chronicled in "The Winds of Winter," Jon Snow, having survived the perils of Westeros, becomes consumed by a hunger for power and conquest. No longer content with defending the realm, he sets his sights on expanding his influence beyond the borders of Westeros, plunging the Seven Kingdoms into a new era of warfare and uncertainty.
Well the character belongs to George R.R Martin and HBO. I am just serving the ideas to your heart.