Only Cry to Prove You're Alive

4 times Haru told Rin not to cry, and 1 time he couldn't. The water has always protected Haru, but when it drags him down, Rin will protect him instead. Haru is drowning, and Rin is crying, but his hands are on his heart and his breath is on his lips and there will only be time for tears once they make it out alive. Pre-RinHaru. Drowning fic. Happy ending!