Dumped at Sea, I'm the Sea God's Bride

Betrayed by her fiancé and stepsister, port girl Liora is thrown into the sea as a fake sacrifice to the long-feared sea god. Her tears awaken the slumbering god Thalyn, who falls for her and promises to make her his queen. When her abusers try to execute her for carrying a "demon child", he arrives to claim his bride and son, punishing all wrongdoers.