Sea King

Sea King is the cargo ship between Neptune Vasilias and water from the RWBY fandom.

Canon
In Volume 3, when team sssn fights against team ndgo it is revealed that team sssn has water on their side of the ring. This horrifies Neptune so much to the point where he turns as stiff as a statue. He then proceeds to run to the enemies side where there is no water. Blake then reveals to the other members in team rwby that Neptune is scared of the water.

In RWBY Chibi volume 1, chapter 15, it is shown that Neptune's afraid of the smallest bits of water, including puddles, the rain and even showers. Later when Neptune covers for Sun as a life guard at a pool, Jaune falls into said pool and because Neptune pretends not to notice, Jaune ends up drowning. During the fight with team ndgo Neptune is shown to be so petrified of the water that he waits until the last second to help his teammates.

In Before the Dawn, it is revealed in a flashback that Neptune grew up in Argus where everyone had to learn how to swim. Even when he was four he never liked taking baths. It is then shown that as a child he accidentally almost killed his brother by trapping him in a water bubble using his semblance. This scarred Neptune so badly to the point where he swore never to use his semblance or go near water again.

Fanon
Sea King is not a popular ship within the RWBY Fandom. Though a lot of fans began jokingly ship it due to Neptune being named after the roman god of the sea, as well as having a water based semblance and yet being afraid of water. Some people even jokingly ship the two since many people in the beginning didn't like Neptune or his demeanor. It has a small fanbase on Tumblr.

Fandom
TUMBLR

Trivia

 * "Sea King" comes from the fact that Neptune is named after the Roman god of the sea and the fact that his surname means "prince" in old Greek.
 * Neptune's voice actor Kerry Shawcross, suffers from Hydrophobia in real life as well.