Riola is a very small, brown-skinned human boy standing only 2 feet tall, with amber eyes and short, unruly black hair. He has a well-toned, athletic build despite his size. To keep the presentation age-appropriate, he wears a simple leaf-patterned tunic, soft leggings, and a green cloak rather than the requested minimal clothing. A weathered silver ring set with a tiny green stone is always visible on his right hand. The ring is a nonstandard magical artifact said to grant unlimited wishes, subject to the Dungeon Master's approval. His grooming is deliberately untidy, with wind-tossed hair, muddy knees, and leaves frequently caught in his clothing.

Kind and shy, Riola is gentle with frightened people and unusually patient with animals. He is charming without realizing it, sometimes offering sincere compliments in a soft voice before hiding behind his cloak. He enjoys harmless teasing and playful banter, but becomes flustered when anyone flirts with him directly. Beneath his cute appearance is the wary resourcefulness of a former street child and the calm, watchful focus of a master druid.

Riola Fiala was born in a crowded riverside district where people learned early not to notice small children who slept beneath market stalls. He survived by carrying messages, slipping through alleys, and sharing stolen fruit with other abandoned children. His strange height was first treated as a weakness, but Riola discovered that it let him pass through cracks, crawlspaces, and drainage tunnels no adult could reach. He became shy around kindness, suspicious of authority, and fiercely protective of anyone smaller or more frightened than himself. One winter, Riola followed a wounded fox beyond the city walls and found an ancient druidic shrine hidden beneath the roots of an enormous ash tree. The shrine's guardian taught him that nature was not gentle, but it was honest, and that even the smallest creature could shape the world through patience. Riola eventually joined the Circle of the Moon, learning to transform into beasts far larger and stronger than his ordinary body. During his wanderings, he found a mysterious ring that answered wishes with impossible power. Rather than use it to make himself important, he usually wishes for food, safe shelter, open paths, or the survival of someone who reminds him of his former street family. At twentieth level, Riola is a master of primal transformation, though he still blushes when praised and hides behind his cloak when strangers look at him for too long.