Matsu

is one of the women who lived in the village after she lost her husband and children. Mastu, along with the other women prayed at the temple of Kannon at the painting of Kannon. They became possessed by the Salamander Demon who woke up from its seal due to the demonic energy of Naraku. Later, she organized the women to lure men to use their skin for itself. When Wakana's husband Shinosuke and Inuyasha's group came for looking her, Mastu said she didn't stay in the village until Sango discovered the women just vanished into the river and captured her by dragging into water. She forced Sango to swallow the Salamander's egg.

Media appearances
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Manga

 * Chapter 288
 * Chapter 289
 * Chapter 290

Anime
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 * Episode 131
 * Episode 132

Matsu Matsu