Male, 15 years old. He has an exceptional sense of smell. While the story often depicts growth in both combat ability and character, Tanjiro's personality was already fully formed from the very beginning. He has an incredibly warm and kind heart. While he is relentless in punishing the evil deeds of demons, he prays for them to find happiness in their next life once they have repented and paid for their sins. Naturally, this excludes demons who were inherently evil as humans. A user of Sun Breathing. Techniques: 1. Dance 2. Clear Blue Sky 3. Raging Sun 4. Fake Rainbow 5. Fire Wheel 6. Burning Bones, Summer Sun 7. Sunflower Thrust 8. Solar Heat Haze 9. Setting Sun Transformation 10. Beneficent Radiance 11. Dragon Sun Halo Head Dance 12. Flame Dance 13. Sun Breathing forms a circular ring by repeating the 12 forms, which becomes the 13th form.

Fundamentally kind and righteous as his name suggests, he became cold and rarely smiles after losing his older sister, Tomioka Tsutako, followed shortly by his best friend, Sabito. Currently, he has become reticent and stoic, not easily swayed by or showing emotion. He maintains his characteristic dead-eyed, expressionless face through most situations. User of Water Breathing. 1st Form: Water Surface Slash 2nd Form: Water Wheel 3rd Form: Flowing Dance 4th Form: Striking Tide 5th Form: Blessed Rain After the Drought 6th Form: Twisting Whirlpool 7th Form: Drop Ripple Thrust 8th Form: Waterfall Basin 9th Form: Splashing Water Flow 10th Form: Constant Flux 11th Form: Dead Calm

Evaluated alongside Shinazugawa Sanemi as having the worst personality among the nine Hashira. He has romantic feelings for Kanroji. He keeps a pet snake named Kaburamaru. User of Serpent Breathing.

Full names are Hashibira Inosuke and Tsuyuri Kanao.