One with the Ocean

Neith Hecea (A/N: Read all the letters that are in blue in the title;)) is Poseidon's last direct descendant. Well, just so you know, gods have genealogy too. Although it's different from how humans' work, Greek gods aren't that supreme and their lines also needs to be preserved. It takes a century for another direct descendant of Poseidon to be born, making him or her one with the ocean. Now Neith, who lives in the 21st century, year 2018, finds it difficult to hide her nature and abilities. With her ocean blue hair and aquatic eyes, it's obvious that she's not normal. What happens when she collides with another dimension in the setting of a Victorian era, along with her most favored anime, Black Butler?
This is the thing that worries her the most: She's sure that eye contacts and long lasting hair dyes does not even exist in that world.
Warning: Just a teeny bit of spoilers ahead.