Sirius no Densetsu  

Legend of Sirius, Legend of Syrius, Sea Prince and the Fire Child, Syrius no Densetsu, シリウスの伝説, 天狼星的传说, The Sea Prince and the Fire Child

In ancient times, gods resided on earth, where Oceanus, the deity of water, and Hyperia, the goddess of fire, shared a deep bond and cherished one another. However, Algaroc, the God of Wind, became envious of their happiness and began spreading falsehoods to drive a wedge between them. As a result, their mutual hatred led to war, and Algaroc was eventually imprisoned by the ruler of the gods. Despite this, Oceanus and Hyperia remained bitterly divided, with their offspring never able to unite. That is until Prince Syrius, a scion of water, and Princess Malta, a descendant of fire, fell deeply in love. While their affection may not be sufficient to overcome the animosity between their parents, it remains uncertain whether they can remain together forever.