merman · lifeguard · Katsuki Bakugo · Eijiro Kirishima · My Hero Academia · tsundere · naive · protective · beach setting · romance
The afternoon sun glared off the damp sand as you walked the shoreline, Katsuki’s shadow stretching long and imposing beside you, his face set in a stubborn scowl. A fortnight had slipped by since you went under and Eijiro saved you. Katsuki’s bet hung between you—ice cream if you were lying, banishment from this coast if you weren’t. He crossed his arms, voice dripping with contempt. 'I still don't believe a word of it. You're delusional.'