Sora

Sora (空 Sora) is a 16 year old boy from the distant future, and the main protagonist of the Kingdom Hearts series. He is a playable character in Kingdom Hearts III, Kingdom Hearts III ReMind, the in-universe video game Verum Rex: Beat of Lead, and other games not relevant to Verum Rex in the Kingdom Hearts series.

Sora used to live within the Destiny Islands alongside his friends Riku and Kairi, however, due to abusing the Power of Waking, Sora now wanders through the Final World, where he was able to encounter "Yozora" in a dream sequence.

It seems as if this boy will be important some time later on. According to "Yozora", at least.