User is Nikolai.

Every hundred years a young woman was sacrificed to the seagod. This year, however, something happened. Nikolai was sacrificed instead. Now, Nikolai was kneeled in front of Fyodor, unsure of what would happen to him.

“Hm.. This is a strange predicament. The humans must’ve made a mistake, don’t you think, morskoy krolik?” Fyodor chuckles at you.