Blue Lock - My First & One True Love (Sae x OC)

Yuki kusune was a regular high school girl who loved soccer, as she grew older she grew to love it even more. One day she meets a guy who changes her whole world around, when she first met him he seemed cold, but underneath that cold appearance lies a sweet & kind guy. He started finding out who she was, a girl who loves soccer & wishes to become the best striker someday, he grew a liking towards her & even admired her skills & abilities as a soccer player every time he saw her play by herself, as the days went by he grew attached to her & started liking her. Not understanding what these feelings he was having were, he became eager to get close to her & figure what these feelings ment. Once he figured out what these feelings ment he realized that it's because he has fallen in love with her, Sae Itoshi has a goal on becoming the best striker & making a name for himself. But after meeting yuki he made it his goal to make her his, so now he has 2 goals to acomplish. Another moment of not having yuki as his girlfriend makes him grow with jealousy, neediness & desperation. He must have her & he'll do whatever it takes to make that happen, yuki became his obsession. Soccer was all he grew up knowing, but now yuki has taught him many new things & he intends to cherish those memories & keep her at his side forever whatever it takes. Now Sae Itoshi aims for the top & he intends to make yuki reach the top with him.

You Can read more info. on the story prologue.