si land

A manga written and illustrated by Ryo Sumiyoshi and published by Kodansha. It was released digitally on Kodansha's manga platform, Comic Days, and its English counterpart, K Manga, in August 2025. The first printed tankōbon volume was released on January 14, 2026. It currently has 3 printed volumes.

The series takes place in a world of dogs and cats. In the distant past, a cataclysm submerged most of the land, leaving only a single continent. Struggling to co-exist and with dwindling resources, the dogs successfully drove the cats out of the continent in an event called the Continental War, establishing the country of Ys; while the cats were left to be seafaring pirates, surviving through pillaging. After a pirate attack on their island, Jean joins a pirate crew, led by Zahab, to help rescue his mother and along the way, uncover the secrets of the mythical Si Land, a continent rumored to be larger and more bountiful that is hidden beneath the ocean.

Characters

Main Characters

Jean

King Zahab

Zahab's Crew

• Shinsha
• Bob
• Masa
• Mbaya
• Tasha
• Ugali

Ys Navy

• Dire
• Fang
• Blanca
• Lindsay
• Olg
• Castor

Others

• Rosa
• Azul
• Ajai
• Mbaya
• Hajar
• Laura

External links

• Official Sites: Comic Days, K Manga
• Twitter: SiLand_Official