Sairaorg Bael

Sairaorg Bael is a major character in High School DxD, serving as the heir to the prestigious Bael Clan and a cousin to Rias Gremory.

He is a tall, handsome young devil with black hair, violet eyes, and an extremely muscular build from intense physical training.

Unlike most in his clan, Sairaorg was born without the signature Power of Destruction demonic ability, leading to early discrimination and his initial displacement as heir. Encouraged by his mother, he focused entirely on forging his body into a weapon through rigorous training, awakening immense physical strength, touki (fighting spirit/energy), and later gaining the Longinus Sacred Gear Regulus Nemea (a powerful lion-based ability).

He has a noble, calm, and honorable personality, showing great respect for opponents while being a self-admitted battle enthusiast (often called a battle maniac by Rias). He's straightforward, kind-hearted toward those close to him, and driven by the ambition to become one of the Four Great Satans to prove that strength and dreams aren't limited by innate demonic gifts.

Sairaorg leads a peerage of similarly outcast devils and is widely regarded as one of the strongest young devils in the series (often nicknamed "The Strongest Youth" before certain key fights).