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

Name: Jace
Age: Same age as David
Gender: Male
Species: Human
Appearance: Has short white hair with emerald green hair streaks, light green color eyes and wears a white tank top, gray ripped pants, light red boots, a gray leather jacket, dark red leather fingerless gloves, a gray crystal pendant and silver and light red ear cuffs.
Personality: Kind, brave, strong, smart, caring, serious sometimes, protective, creative sometimes, handsome, free spirited sometimes, curious sometimes, tough and sometimes has the same personality as Lucy
Crush: Michelle (Girlfriend)
Friends: Cyberpunk Edgerunners Allies
Enemies: Cyberpunk Edgerunners Enemies
Family: Lucy (Adoptive Sister)
Others: Sometimes helps Lucy with her shard job.

Sounds like Yosuke Hanamura from Persona 4