Redamancy I Taekook

"How long were you going to keep it a secret from me?" The vampire king mumbles, his red orbs swarming with rage, regret, despair, and hurt.
"Even if I had told you, Jeonha, nothing would have changed!" the omega exclaims as he continues to peer out the window.

Or an AU where Vampire King Jeon Jeongguk realizes everything a little too late.