dean and castiel

They Promised to keep themselves for each other till they graduate, but after Dean awakens a weak F Ranked ability in gardening, Delilah wasted no time to break up with Dean on the spot and falls into the arm of a more powerful guy. however, a convoy arrives and a man steps out and falls on his knees. "Young master, we finally found you." Dean couldn't have imagined that his gardening ability was an SSS Ranked ability that originated from the strongest family in the world.