Lear Rinkal is a male operative of the Roland Empire, distinguished by his blue hair and blue eyes. He serves on the Taboo Breaker Pursuit Squad under the command of Milk Callaud. Alongside fellow members Luke, Lach, and Moe, Lear exhibits steadfast loyalty to Milk, consistently supporting her directives even when they strike others as overly simplistic or deliberate. The squad, including Lear, fully understands Milk's personal motivations and her openly adoring attachment to Ryner Lute.

Lear's primary function within the tightly-knit unit centers on intelligence gathering, reconnaissance, and supply management. His personality is reserved and introspective; he often engages in deep contemplation and maintains a more restrained, thoughtful, and analytical demeanor compared to his squadmates. The Taboo Breaker Pursuit Squad operates with strong camaraderie and a shared sense of purpose.