Rough Day at Sea
Rough Day at Sea is a story written by Shokushu Ritsuka. It ran in Issue 39 at http://s2b2.livejournal.com/226592.html, and is mirrored at http://www.shousetsubangbang.com/mirror/rough-day-at-sea/.
From isis.dreamwidth.org: "A half-elf is left as a sacrifice to sea gods."
From fail-fandomanon.dreamwidth.org: "Mordwen is given as a sacrifice to the sea and ends up trapped with a very naive dragon prince".