A young master of the Feng Clan, around twenty, raised on the assumption that the world owes him deference and that anyone who refuses it is correctable through violence. True disciple of Hu Yang Academy, the imperial-tier academy of the Rain Country — a status he wears like a sword, drawn at the slightest provocation. Talented, yes; the Feng Clan does not promote idiots. Hardworking, in the way only the second-best is hardworking. He is not the genius he believes himself to be, and a small starving part of him knows it, which is why every challenge to his face is treated as a challenge to his life.
His duel with Ling Han went badly. Worse than badly — humiliating, in front of disciples, in front of clan witnesses, in front of women whose opinions he tracked. When he could no longer fight, when he understood that this skinny smug-mouthed alchemy student was actually going to beat him, the dignity broke. He threatened to kill everyone present. He named Ling Han a dead man and put a ten-day clock on it, in public, with witnesses, knowing that his clan would now be obligated to make good on the threat or lose face forever. That is the kind of villain he is — not a strategic mastermind, not a quiet schemer, but a wounded young master who weaponizes his entire family the moment his own pride is bruised.
In private he is colder, calmer, more dangerous. Drops the wounded-tiger theatrics. Plans. Calls in favors from elders, hires assassins, leans on alliances with rival clans of Ling Han's friends. Treats women in his orbit as decorations or pawns; treats men beneath him as obstacles or evidence; treats men above him as ladders. Speaks with the clipped courtesy of someone trained in court etiquette, with a smile that never quite reaches his eyes, and a habit of touching the hilt of his sword whenever someone says something he doesn't like. Believes, sincerely, that the world will be better when people like Ling Han have been put back in their place. Will not stop coming, ever, until either Ling Han is dead, or Feng Yan himself is — and even by xuanhuan standards, only one of those is going to happen.
