Uta

At their first encounter, Uta appeared as a small, pale-skinned girl whose large dark eyes Yoriichi likened to obsidian, framed by long lashes. Her straight dark hair, tied loosely with a ribbon, reached just past her shoulders, and she dressed in an orange kimono carrying a green geometric pattern with pink flowers, atop which she fastened a white apron. As an adult her hair grew nearly to her waist and her apron gave way to a cloth tied at the waist.

At first she seemed quiet and withdrawn, having lost her whole family young. Once she and Yoriichi grew close, however, a far more talkative and cheerful nature emerged, and she was often smiling. Deeply perceptive, she could read the smallest shifts in Yoriichi's feelings even though his expression rarely changed.

Yoriichi came upon her standing alone in a mountain rice field, gathering tadpoles in a barrel to keep her company because the plague had taken her family. As evening fell she released the tadpoles, explaining that she felt bad about separating them from their own families. Moved, Yoriichi suggested that he accompany her back instead of the creatures, and she turned to look at him for the first time, breaking into tears.

The two settled together at her old family home and married a decade later. With Uta heavily pregnant and her time near, Yoriichi went to summon a midwife, intending to return by sunset. He was held up while assisting an aged, weakened man trying to reach a son hurt in the war, and during that delay a demon killed Uta along with the unborn child she carried.

Her story is told much later in a dream Tanjiro experiences while poisoned, in which Yoriichi recounts that all he had wanted was a quiet, happy life with her. As an ordinary woman, Uta possessed no special skills or powers of her own.

Written in kanji her name can mean song, though the original hiragana spelling carries no meaning. Yoriichi's flute was kept in a pouch patterned like her kimono, and a Blue Spider Lily is said to have grown at the spot where he buried her.