Kotoha was described to be a beautiful young woman who looked similar to her son, Inosuke. Doma said Kotoha had a softer appearance compared to Inosuke. Kotoha has long hair tied up at the end as a bun. She has emerald green eyes.
Kotoha is kind and loving. She treasured Inosuke dearly and would always sing lullabies to him when he was a baby. Doma said she was very naive and stupid aside from her loving nature.
Kotoha gave birth to Inosuke at the tender age of 17 or 18. She fled from the abusive relationship she had with Inosuke's father and raised him by herself. She loved her son immensely and often sang songs to him promising to protect him. In her final moments, she was apologetic to Inosuke for failing him as his mother and as his guardian.
Kotoha thought Doma was nice and trusted him. But when she discovered he was a man eating demon, she fled and later died trying to protect her son.
Kotoha gave birth to Inosuke as a young teenager, She fled from the abusive relationship she had with Inosuke's father and raised him by herself. She stumbled upon a temple and took refuge alongside a group of worshipping villagers, she lived their happily with her son until she suspected that the worshippers were being eaten by Doma. She accused him of lying to his followers and fled the temple with Inosuke in her arms, she tried to escape into the forest but was trapped by a cliff. In her final moments, she apologized to Inosuke for failing to protect him and tosses him into the river in an attempt to save him but she is ultimately killed and eaten by Doma.