Old Woman Tamu (タム婆, Tamu Bā?) is a living Makai gateway. Though humanoid, various parts of her body is composed of wood and branches. Between her "thighs" is the entrance to the Crimson Forest. Without permission from Tamu, no one can enter. She had a friendly relationship with Makai Priest Amon and enjoys sharing a cup of red sake with him.
Tamu is portrayed by Toshie Negishi (根岸 季衣, Negishi Toshie?).