Koshi Kanda is the closest Tsubasa Ozora's rival for the love of Sanae Nakazawa.

His first appearance was in Captain Tsubasa (chapter 56). He's a tall, athletic, good-looking young man with slightly fluffy bangs. His looks change slightly in the 2023 series: his hair is a bit less fluffy, he has slightly tanned skin, and has dark blue eyes.

Kanda is a very emotional young man, impulsive and fiery. While not a cruel person, he can be extremely arrogant as well and especially to people that he either is possessive of (like Sanae) or deems as inferior (like Tsubasa). But he also respects those who prove a challenge and refuse to give up.

(Source: Captain Tsubasa Wiki)