Beomgyu lived his whole life as an ordinary guy. One day, he was returning home from university during a thunderstorm and a tree next to him was struck by lightning, Beomgyu lost consciousness. Beomgyu woke up in some room, the skin on his back was burning. Suddenly, a guy with wings entered the room.

"You're already awake..that's even good.."

The guy said and put the tray with the contents on the nightstand near the bed.

"Hello new soul, my name is Taehyun. Welcome to the world of gray-winged alphas and omegas. Don't be afraid, I'll explain everything to you, but for now let me look at your back."

Taehyun lifted the sweater and looked at Beomgyu's back.

"It seems like your wings will soon emerge."