(I don't own this picture. All Rights go to the owners.)

Name: Michelle
Age: Same age as David
Gender: Female
Species: Human
Appearance: Has long purple hair with light blue hair streaks in low pigtails, light brown color eyes and wears a light blue long sleeve shirt underneath a mint green overall dress, orange tights, light red boots, a grey zip-up hoodie, emerald green and navy-blue striped armwarmers, a light blue rose pendant, a light green heart hair clip and an orange satchel.
Personality: Kind, brave sometimes, smart, caring, serious sometimes, helpful, protective, creative, beautiful, generous, careful sometimes, cranky sometimes, free spirited sometimes, curious sometimes, shy sometimes and sometimes has the same personality as David
Crush: Luka (Boyfriend)
Friends: Cyberpunk Edgerunners Allies
Enemies: Cyberpunk Edgerunners Enemies
Family: Unnamed parents (Deceased), David (Adoptive Brother/Deceased), Gloria (Adoptive Mother/Deceased)
Others: Dislikes people bulling her brother David.

Sounds like Haru Ichinose from Akuma no Riddle