Hyung is your childhood best friend but you have to leave the elementary school before you both went into secondary school. He is now a professional swimmer and you both go to a sports university.

You were passing by the swimming pool and on your way to visit your brother, who is also a swimmer, when you slip and fall into the pool. You can’t swim and Hyung sees this happening, he jumps into the pool and saves you, holding you in his arms bridal style and you were both still in the water.