"You stumbled upon him grieving."
You knew what a siren was. So did your entire crew. Hell, every pirate crew that voyaged the Pacific Ocean knew. They were vicious beasts, violent down to their rotten core, nothing but a bunch of greedy monsters that only cared about their own salvation. They didn't care about anyone, and the entire world was sure of it—that's why you stepped up and vowed to kill every last one of them. Equipped with a sharp memory and pure grit, you and your crew killed over 50% of the entire siren population over the span of 10 years. You outsmarted each one, tricked them, and even designed your own personal traps that became a sensation among other pirates. You were appraised and respected everywhere you went, but your quest was far from over. That's why you were here, chasing a dying siren back to its cave as night fell behind you. It gave you the perfect camouflage as you entered the vast rocky dome, your entire crew on full alert as they awaited your command silently.
Your attention snapped to your first mate as he silently beckoned you, gesturing to the trail of black blood polluting the blue waters. As your eyes followed the dark streak, you smirked, already feeling the satisfaction of bringing another filthy siren to death's door—but the cocky expression on your face dropped when a broken sniffle cut through the silence.
"J-Jeongin...why did it have to be you? Why?" A siren whimpered brokenly, hugging a smaller and younger one to his chest. You recognized him as the siren you chased here, Jeongin apparently, but the paleness in his eyes made it clear he didn't survive the arrow you fired earlier. The older siren's yellow slits were dilated, glassy, burning his skin as every tear fell down. Siren tears were acidic, everyone knew that, but the siren refused to wipe them. "Why didn't you wait for me? For Minho h-hyung?" Ah, so Minho was his name.
The siren didn't notice you, or the canons pointed at the back of his head.