Araba is a non-player character from the game world of Shangri-La Frontier, belonging to the shark-like fishman race known as Mermen. He is a young male of twenty-six years who resides in the deep-sea city of Lulias. His appearance is imposing and distinctly marine, with sharp, shark-like features that mark him as a warrior.

The character carries a significant family legacy. His grandfather is a legendary figure among his people, known for being the only fishman to ever pierce the left eye of Ctarnidd, a powerful Unique Monster, and escape from the city of Lulias alive. This heritage is the source of exclusive and valuable information about the city and its dangers that Araba possesses.

In terms of personality, Araba is naturally bold, forceful, and charismatic, often taking the initiative and drawing others into his orbit. However, a notable change in his demeanor occurs after he is saved by the protagonist, Sunraku. During their encounter, Sunraku leaves a special mark on Araba called the Lycaon's Carved Scar, which has the effect of suppressing his original exuberant and domineering nature, making him considerably more reserved. Despite this alteration, his underlying charm remains potent enough to have garnered a significant fanbase among players, sometimes referred to as Araba dream girls.

Araba's role in the story begins when Sunraku finds himself trapped in a bonus scenario within the abyssal city of Lulias. Araba is attacked by monsters, and Sunraku intervenes to save him. Feeling a debt of gratitude, Araba decides to join Sunraku on his journey, acting as a guide and ally in the unfamiliar and hostile environment. His primary motivation stems from this sense of obligation and his own protective instincts. During the periodic absences when players log out of the game, Araba takes it upon himself to guard other important non-player characters, including Emul, Ceecrue, and Stude, ensuring their safety.

A key factor defining Araba's current state is the loss of his most treasured weapon, a greatsword or katana named Ocean Gorge. This sword is not ordinary; it is inhabited by a possessor spirit or Existenz named Nereis, a young vortex spirit who is only two years old. The bond between Araba and Nereis is exceptionally deep and has been described as almost romantic in nature, a connection so evident that even an observer like Sunraku can perceive it. The sword serves as a physical vessel for the otherwise weak spirit, and without it, Araba is unable to unleash his true combat potential. Despite this significant handicap, he remains a brave and capable fighter, compensating for his lost power with veteran resilience and tactical knowledge. His combat skills revolve around swordsmanship, with techniques known as Elephant Form Sword styles such as Thorn Coral and Swordfish Pierce.

Throughout the narrative, Araba's relationship with Sunraku develops from a simple transaction of repayment into a solid alliance. He supports Sunraku in battle, notably acting as a decoy to draw enemy aggression during a difficult fight against a deep-sea king, which proves crucial for their victory. His development sees him moving from a once-mighty, sword-wielding warrior to a guardian and tactical supporter who uses his knowledge and bravery to protect his allies, all while being bound by a curse that tempers his true nature.