Hana no Ko Lunlun (TV Series, 50 episodes, AniDB)

Requested before Jun 2019

The King of the Flower Planet is dying, but his heir can`t take up the throne until the legendary Seven Color Flower, symbol of the King`s power, is found. The Angels Cateau and Noveau are sent to Earth to find the Flower Girl, a young female who descends from both humans and Flower Angels (who once inhabited Earth, long ago) - and they find Lunlun in France. They convince her to go in a long journey to find the Flower - she`ll know the good and bad sides of humans and Flower Angels (incarnated in the ambicious Togenishia and her sidekick Boris), and will fall in love with Serge Flora, a man who holds a great secret. Source: ANN