A young modern japanese high school student. He spent most of his life having vivid dreams about his past life until he meets Suzuki who helps Sudou come to the realization that he in fact is also the reincarnation of Shutohel. After remembering his meeting with Yurul and Shutohel's death sentence, he decides to interfere and possess Shutohel's dead body so that she can be reunited with Yurul again. Although Shutohel eventually takes her own body over again, he spends a long time in her body and also meets many important characters like Veronica.