Is she crying? As he wondered this, lightly clenching his fist, the girl lifted her face and turned toward him. Her eyes met Haruka's, and she wiped at her tear-stained cheeks with her left arm. Then she glared fixedly at Haruka.

SPOILER ALERT [Free! Ep.7] - just in case...
~Th-that girl! Could it have been Gou??? In the latest episode, Rin and Gou were shown at the end of the line of people wearing white (just like what was described in this scene) and their father was actually one of the victims of that sunken ship tragedy years back! DX