Risk my wings (Yuwin)
There was a boy called Yuta, senior in high school, handsome and popular between friends and girls. He had it all, so no one ever understood why he was risking his life day by day, driving his friends, mother and girlfriend insane, with his wild tries. They though it was a miracle, that he was still there and joked around his guardian angel must be a busy one, however none could guess he was indeed one of the busiest guardians.
His name was Sicheng and he had the patience to deal with everything with a warm smile. But things got worse, so he was faced to take a challenge no guardian has ever tried before him, become a human for 100 days, to convince the boy to stop his ridiculous behavior, the last 100 days in Yuta's life.