Gaff Shandy is a prominent character from the anime Bye Bye, Earth. He is a distinguished figure in the land of Schwertland, the so-called Land of Swords, where he holds the title of a swordmaster. He is also recognized as one of the four great swordsmen of this kingdom, placing him among the most elite warriors in his nation. Beyond his combat prowess, Gaff serves as the proud chief of the Moon-Eyed clan and leads a group known as the Yellow Priests, or Ivory, from within the castle. A member of a noble family, he was born and raised in the castle and was identified from a young age as a future leader, groomed to carry the hopes of his people.

In terms of appearance, Gaff is notable for his striking golden fur, a characteristic trait of his clan, which shines brilliantly and gives him an imposing and majestic presence. He typically wears a vest and a sash. His appearance is said to command respect and convey both authority and a serene sense of confidence. His personality is described as serious, rigorous, and upright, yet he is not seen as stubborn or unapproachable. Instead, he is known for his willingness to listen to those around him, a quality that has earned him great esteem and admiration from his peers and followers alike. His character embodies responsibility, honor, and courage as he faces his destiny as a leader.

Gaff's motivations are deeply tied to his duty to his kingdom and his people. As the heir apparent following the death of the king, he carries the future of his realm on his shoulders. He is the designated successor expected to guide the country as the next Sovereign Brother. He is also the keeper of the Royal Sword, the kingdom's sacred weapon. This scarlet, double-edged blade bears the inscription "EMOCLEW," and Gaff is able to draw out its unique and mysterious power, which can cause the sword to shine with a golden light in critical moments.

His role in the story of Bye Bye, Earth is substantial. He is an established and powerful figure whose actions and decisions impact the kingdom's fate. As a swordmaster and one of the four great swordsmen, his skill with a blade is at the pinnacle of Schwertland's martial arts. He is also a central figure in the kingdom's political and spiritual leadership as the chief of the Yellow Priests. The narrative places him in a position of great responsibility, and he is directly involved in key plot events, such as when the character Adonis steals the sacred sword from him.

Gaff's key relationships are central to his character. He is the older brother of the protagonist, Belle Lablac, with whom he shares a deep and profound bond. Furthermore, before excelling as a swordsman himself, he was a student of Sian Lablac, which makes his role as a mentor to Belle a continuation of a generational tradition of teaching. He is also the fiancé of Sherry, who is the daughter of the king of Schwertland, a relationship that ties him directly to the royal family and its fate. He has a younger brother as well, which underscores the importance of blood ties within his family.

While specific details of his development are tied to the ongoing plot, Gaff is portrayed as a character who has grown into his role as a leader, having been supported by his family and friends since childhood. His central journey involves understanding and wielding the power of the Royal Sword, as well as navigating the immense expectations placed upon him as the kingdom's hope and potential future king. Regarding abilities, Gaff's foremost talent is his unparalleled swordsmanship, which has earned him a place among the land's four greatest swordsmen. His mastery over the Royal Sword is a notable ability, as he can unlock its latent powers, causing it to gleam with a golden radiance. His formidable reputation and skill are such that he is respected by both allies and rivals throughout the land.