Don't Dive (Free! Fanfic)

Haruhi is a normal teenage girl looking to live a normal teenage life. Of course, she wants drama and romance like every other girl, but she also wants something a bit out of the ordinary. She wants to hide from her older brother who she hasn't seen in years. It seems impossible when she's forced to join the Iwatobi High School's swimming club, which desperately needs members, but she still manages to hide her identity. Meanwhile, the club members are going through rough times when they suddenly reunite with their childhood friend and Gou's older brother, Rin Matsuoka, who's first priority is to avoid the group. Somehow, Haruhi finds herself slowly becoming friends with the older Matsuoka, even though she's constantly warned to avoid him. Haruhi dives into her knew way of life, but the real question is, will she ever be able to reach the surface again?

OC x Rin