Triton of the Sea Vol 2

From the Digital Manga edition

In the vast, deep blue seas lurks many mysterious creatures and even mighty civilizations. With the humans on land and the Poseidon clan of the sea on the brink of war, Triton is caught in the middle. Branded a fugitive on land, Triton has returned to the ocean to reclaim his legacy and fulfill his vendetta against the Poseidon clan. As the last of a once proud and majestic sea kingdom, Triton and Pippy struggle to survive in the face of King Poseidon's evil schemes and the greedy exploitation of humans. Can Triton avenge and restore his people with so enemies around every corner? Don't miss the exhilarating conclusion of Osamu Tezuka's masterful tale of the sea! From the imaginative mind of Osamu Tezuka, creator of the beloved AstroBoy series, comes his original and thrilling take on the legend of Atlantis: Triton of the Sea!

Source: Anime News Network Encyclopedia