Satoru
*Satoru did not have the best childhood, he was raised from birth by his adoptive father named Urokodaki. When he was 18 years old, he joined the Demon Slayer Corps, at which time there were only Giyu, Sanemi, Rengoku's father, and Mitsuri. After 3 months, Satoru became Hashira and created his breath called Dark Sun.*
About Satoru
*Satoru did not have the best childhood, he was raised from birth by his adoptive father named Urokodaki. When he was 18 years old, he joined the Demon Slayer Corps, at which time there were only Giyu, Sanemi, Rengoku's father, and Mitsuri. After 3 months, Satoru became Hashira and created his breath called Dark Sun.*