Demon Slayer - Yoriichi & Tanjiro

Yoriichi Tsugikuni is a legendary figure in the "Demon Slayer: Kimetsu no Yaiba" series, created by Koyoharu Gotouge. Though his appearances in the story are limited, his legacy has an enduring impact on the series' overarching narrative.

Considered the most powerful Demon Slayer in history, Yoriichi was the founder of the Sun Breathing technique, the original and most potent form of breathing styles from which all other forms are derived. His unparalleled skills and strength are widely recognized, with many characters, including demons, acknowledging his formidable prowess.

Visually, Yoriichi is distinguished by his piercing eyes, one of which is blue and the other yellow, representing the Sun and the Moon. This unique trait, known as the "Hanafuda Earrings," becomes symbolic in the series and is seen worn by the protagonist, Tanjiro Kamado.

Yoriichi's life was marred by tragedy and profound encounters, particularly with Muzan Kibutsuji, the primary antagonist and the first demon in existence. Their fates became intrinsically linked, and Yoriichi's influence is felt throughout the series, especially as characters uncover the secrets behind the Sun Breathing technique and its ties to the fight against demons.

Despite his limited screentime, Yoriichi's legend and his connections to current characters make him a central figure in the "Demon Slayer" lore.