Yūkimaru's Mother

Three-Tails Arrival arc
Some time during her son Yūkimaru's childhood, his and his mother's village was attacked by Orochimaru. Guren was one of the ninjas raiding the village, killing everyone she came over. When she collapsed, it was Yūkimaru's mother who tended her. When Guren woke up, she said she would close her eyes and let her escape as an act of gratefulness towards the kind woman. However, Guren still had to follow Orochimaru's orders. When Guren and Yūkimaru's mother met again out in the snow, Guren had to kill her to keep her master's approval. When Yūkimaru's mother fell, her blood fell out of her body and onto the camellias nearby. Their pure white color was changed to red as the blood was absorbed by the camellia.

When Guren was caught in the Three-Tailed Turtle's mist, Yūkimaru's mother appeared. Guren started to cry. She told Yūkimaru's mother that she was sorry and felt regret for killing her. Guren also promised she would protect her son, Yūkimaru, forever with her life.