Kotoha Hashibira was the mother of Inosuke Hashibira. Kotoha was described to be a beautiful, young woman, similar in appearance to her son, though Doma stated that she had a softer appearance compared to Inosuke. She wore her long, black hair tied up at the end as a bun and had emerald green eyes. Kotoha was a kind and loving woman, always showing appreciation to those around her. She treasured Inosuke dearly and would always sing lullabies to him when he was a baby, promising to always protect him no matter what. When meeting Doma, she found a fond liking in him due to him helping her escape the abuse she was facing from her family. According to Doma, she was naive and not very smart. Doma describes her as a "beautiful" but innocent person.