Esroh is a male seahorse human
Esroh managed to find his way to Auradon one day where he met Harry Hook. Immediately he fell in love with his thick accent and his ruthless personality. And he certainly was ruthless in bed.
Esroh spent months admiring the light blue eyes that looked like the beautiful sea he came from and he gawped at the volumtious brown hair that sat so gloriously on top of his gorgeous round head.
After months of stalking Harry, Esroh finally gets caught by Uma and Gil but it turned out well because harry had been watching esroh too refusing to take his eyes off of his long cylindrical nose and his pointy hair. Esroh was Harry's soul mate. And Harry was Esroh's soulmate.
They dated for a week. Then two weeks. Then a month. Then a year. And one night something very special happened. Esroh and Harry spent all day spending time together on Harry's pirate ship. And at some point in the day they fell even deeper in love. They began to kiss but their usual kiss turned into a vigorous make out session. Which led to them undressing each other which led to unprotected sex. This happened multiple times but one time Esroh got pregnant. They quickly told their friends who were happy for them.