Below is the homebrew Fairy race, of which Cerise is specifically a Pixie with Gossamer Wings.

http://homebrewery.naturalcrit.com/share/S1-b5GskQ

Gossamer Wings: You have a fly speed of 30 ft. The air is considered difficult terrain when you are further than 5 ft from solid ground, and if you remain in flight for more than a minute without touching down, you must succeed on a DC 10 Constitution saving throw or take a level of Exhaustion (repeating the save for every minute of flight). You also have Disadvantage at Stealth, while in flight, due to the sparkling nature of the wings when in motion.