Love Story of Little Fairy

I used to be a little fairy who was carefree and carefree, but the big boss fight made me take the blame! They punished me to live in the mortal world for a hundred years, and asked me to take the blame for them. The person promised that I would be promoted to a higher rank when I came back, and I happily agreed! (I thought that one day in the sky and one year on the earth flew very quickly, hahaha) I never thought that after I came down, this big boss would also come down...