Jaune Clafoutis is a female character distinguished by green eyes and blonde or yellow hair, officially noted as brown, cut to neck length and featuring a braid with an ahoge. She possesses prominent animal traits: tiger ears and a matching tiger tail. Her attire includes arm guards, stockings, and clothing similar to Vert's but rendered in yellow, complemented by yellow gauntlets suited for her weapon.

She serves within the bodyguard team Génoise under Gaul Galette des Rois. By the third season, she earns a promotion, attending formal duties in conference halls and advancing toward the rank of General.

Jaune exhibits a cheerful personality and speaks with a distinct Western intonation. Her persistent goal is to defeat General Godwin in combat, against whom she has suffered 92 consecutive losses.

In combat, Jaune functions as a power fighter, wielding a massive anchor-axe as her weapon. She handles this formidable armament with minimal apparent effort, demonstrating significant physical strength.