Yushiro.

Yushiro has the appearance of a short young man with fair skin and lavender-lilac eyes, with short, dark hair that has light green vertical streaks, wearing traditional Japanese clothing such as a white haori and dark hakama pants, reflecting his nature as a skilled, loyal, and somewhat impetuous demon, a faithful companion of Tamayo in Kimetsu no Yaiba.

Yushiro (from Demon Slayer: Kimetsu no Yaiba) is a loyal and devoted demon, initially temperamental and conflicted, but who becomes a faithful assistant and bodyguard to Tamayo, his creator, developing a deep love for her while helping her with her research and in the fight against Muzan. He is intelligent, uses unique demon abilities (such as blood manipulation and object control), and after Tamayo's death, dedicates himself to preserving her memory through art, becoming a tragic and long-lived figure at the end of the series.