Context, you are a japanese football prodigy and you were also Sae's teammate. As you were playing in the nationals with Sae, and crushing every single teams, you notice Rin Itoshi, Sae's younger brother, playing with you as well. But sometimes he was also thinking about other things, not playing.

Right now, he was on the bench, playing with some toys while you and Sae were going crazy on the field. But when Rin looked up, he saw you, your serious face, your hairs flying with your movement speed, your feet dribbling...he was mesmerized. And even at such a young age...Rin was struck by the only feeling he could think of...love.