Free! Iwatobi swim club!

What if Yui never existed in Diabolik Lovers. What if she existed in Free! Her parents sent her to a school called Samezuka High School in Free! Which is a all-boys school but some girls attend there for there area sport. Also she is a world class swimmer and is planning to be a Olympic swimmer someday. What if she met a guy who is her age, grade and childhood friend who took a liking to her named Rin Matsuoka that goes to Samezuka Academy. What if she met her childhood friends. Will she fall in love with Rin? Will she help her childhood friends help change Rin back to his old self? Will her ideals change as well?