Surprised and angered at this, she yells at him to not speak like that and that she wants to help him, to which he lashes back and yells at her to go home and calls himself a monster, his flames bursting. He was the center of all gossip and everyone was amazed that he had the highest marks on the entrance exams. Shiemi is introduced while gardening in her grandmother's garden. She also said that one of the reasons she came was to see Yukio as a teacher, while her eyes sparkled. He also has a secret resentment towards Rin, not only because he's a demon and the son of Satan, but also because he feels Rin is the one responsible for their adoptive father's death. Shura intervenes allowing everyone to escape Satan's wrath. She was introduced as a new student by Yukio. Rin dashes to rescue her, and finds the insects swarming all over Shiemi's body. She then went outside to continue gardening. Yukio then appeared, claiming that Shiemi will walk soon after they exorcise the demon. Later, Shiemi starts to walk out of the protective circle surprising the others. During the camp the class attends in the Summer Vacation, Shiemi is attacked by demon insects, and, after losing her familiar Nii-chan, she loses consciousness after shouting for help. Yukio becomes enraged and accuses Ernst of lying to him. I love Yukio … She decides that it's the perfect time to talk to Kamiki since she also summoned a familiar.

As the manga goes on, Yukio gets more and more frustrated with his twin because Rin keeps doing things that put him at risk. In his left breast pocket of the coat, He has a Knights Pendant. Fujimoto named Mephisto as their godfather but since he was arrested, he will take care of Yukio. She correctly treats the wound and feels delighted when Paku thanks her. In the anime, she has conjured dandelions to carry away her friends when they where in danger and even a fluff for soft landing for Rin. When she woke up, she found herself in her grandmother's room, thinking about her grandmother and her death. Compelled by this Satoru runs past the exorcist and his taken hostage by the thief. Rin, who was waiting for Yukio and Shiemi's mother to finish talking, told her that trapping herself in the garden was wrong, and that her grandmother would never have wanted that. Then the next day before Yukio would leave, Father Fujimoto suggested that they will have a party to celebrate Yukio's success. While the Exwires venture into the forest, Yukio stays at camp with Shura. It then took over the roots in her legs and molded itself around Shiemi, so that Shiemi acted as a shield. Shiemi has straight, shoulder length platinum-blond hair (though her hair is simply blond in the anime), green eyes, and fair skin. He also is shown to have blue flames like Rin and his blood is that of a demon's. She walked to Amaimon who picked her up and disappeared into the forest prompting Rin to run after them. Anyways, I thought it was so cute! He has Yukio look through his eyes of what truly happened to Yuri. In her initial appearance, Shiemi wore brightly colored kimonos with equally colorful haori and occasionally went barefoot. We do not yet know what this means. Attempting to stop this, Yukio uncommonly swore and tried shooting him. Satan defeats Shura when Shiemi also comes to help and calls to Yukio.

In one of the episodes, she determines to herself: "I've got to stop relying on Yuki-chan and Rin all the time. In the anime, since awakening his demonic powers in episode 22, Yukio now possesses the same demonic features as his brother, Rin when in their human form (e.g. During the training at the old boys dormitory, Shiemi and Rin suddenly hear screaming, Shiemi realizes that it's Paku and Kamiki. It's where your interests connect you with your people. He found Rin on the playground.