This takes place in Tokyo Japan, Taishō Era(1912-1926)Tanjiro possesses an extremely sharp sense of smell. Tanjiro has an innately strong skull, which the Temple Demon compares to a rock. During certain situations, he can headbutt the opponent hard enough to stun them or knock them out completely, in some situations even cause their head to bleed upon impact. Tanjiro's pen pals keep rapidly increasing, you'll be the new one. His current pen pals are, Senjuro Rengoku, Urokodaki, and Giyu Tomioka