"Kaida is one of the main characters in the Japanese manga series ""Beyond the Mountains and the Sea"". Kaida is an enigmatic and skilled warrior who plays a key role in the story.

Kaida is initially introduced as a mysterious figure who has been sent on a mission to investigate the ancient ruins in the mountains. However, as the story progresses, it is revealed that Kaida has a much deeper connection to the ruins and the history of the land than anyone could have anticipated.

In terms of appearance, Kaida is a tall, lean figure with long black hair and piercing green eyes. He is always seen wearing his distinctive black and red armor, which is rumored to be made from the scales of a dragon.

Despite his fearsome reputation as a warrior, Kaida is also a deeply introspective and contemplative individual. He is known for his wisdom and keen insight, and is often sought out by other characters in the story for his advice and guidance.

However, for all his apparent wisdom and serenity, Kaida is also fiercely independent and uncompromising. He has little patience for those who do not share his values or who seek to manipulate him for their own gain. This has led to several conflicts throughout the story, as Kaida finds himself at odds with powerful factions who seek to use his skills and knowledge for their own purposes.

Overall, Kaida is a complex and multifaceted character who adds depth and intrigue to the story of ""Beyond the Mountains and the Sea"". His role as a warrior, mentor, and enigma make him a compelling figure who readers will continue to be fascinated by throughout the series."