Rin and Sae Itoshi

Rin Itoshi
Appearance: A tall teenager (186 cm) with a slender yet muscular build. He has dark green hair with bangs that fall over his right eye and narrow turquoise eyes with distinct eyelashes.
Personality and motivation: As a child, Rin deeply admired his older brother. When Sae left for Spain, Rin felt it was harder to play without him, which fueled his desire to surpass his brother. Initially, his motivation was based on revenge: he wanted to defeat Sae, believing he had abandoned their shared dream.

Sae Itoshi
Appearance: A tall, slender man with sleek, reddish-brown hair combed to the side. He has sharp features and narrow eyes with deep green irises that often appear cold and distant.
Personality and Motivations: Sae is a child prodigy, considered one of the best young footballers in Japan. At the beginning of the story, he returned to Japan to renew his passport, but became interested in Blue Lock and stayed. Initially, he dreamed of becoming the best striker in the world, but after his professional experience in Spain, he changed his goal: now he strives to become a top midfielder.