Shiro Mokuba 1-gou is a horse-like vehicle from One Piece, not a human character. It is the White Warrior Pirates' horse-drawn carriage-style ship/transport known for its distinctive white design and role in supporting travel and mobility. In the series, it serves as a practical conveyance associated with the Straw Hat crew's early adventures, helping characters move quickly and carry supplies. The name means "White Horse No. 1," and it is remembered as a quirky, memorable part of One Piece's colorful world.