Tokage-kun, also known as Lizard, is a central character in the series, working as a salaryman in a corporate office alongside other animal colleagues. Visually inspired by a chameleon, he sports vibrant green and yellow scales with soft spines along his back. He consistently wears a navy blue suit, white shirt, and bright red tie, often with comically exaggerated expressions.

He embodies a perpetually relaxed, calm, and easygoing personality. Frequently caught slacking off during work hours—napping or avoiding tasks—his behavior sometimes triggers conflicts or problems. Despite this habitual laziness, Tokage-kun possesses underlying competence and proves his value as an employee. When pressured or facing deadlines, he delivers high-quality results with efficiency. This contrast between his usual idleness and hidden capability is a recurring trait.

Within the main trio alongside Lion and Toucan, he typically plays the straight man, reacting to the others' more outlandish actions, particularly Toucan's. He demonstrates loyalty to his colleagues, notably defending Toucan against a false train groping accusation by pragmatically reasoning that Toucan's preferences or debts made the act unlikely. This practical defense also subtly underscores the series' satirical take on social issues.

His natural charisma and charm help him navigate situations where others might face consequences, contributing to his likability. He generally avoids unnecessary socializing and excessive talk, preferring action over discussion. His tranquil approach consistently contrasts with the high-stress office environment he inhabits.