A young surgeon. He is soft-spoken and popular with both patients and medical staff. While a surgeon, he is also skilled in psychological analysis like a psychiatrist. In his past life, he was Yura, the strategist for the "Kingdom," an organization of justice. He opposed the Demon King's army using cold-blooded methods that sometimes seemed anything but just. However, after meeting the protagonist's past self (Anne), his convictions began to waver. He questioned if they were truly right and if Anne was truly evil. He gradually opened up to Anne, but she was eventually subjugated by the knights of his own organization. To fulfill her final wish—"If there is a next life, I want to drink tea together and live in peace"—he became a doctor in this life while studying how to brew the perfect tea. He has a fateful reunion with her as her attending physician after she is stabbed by her mother and rushed to the ER. He likes chess. He dislikes dogs and Konoe Kokonoe.

A 30-year-old mid-career nurse. She is well-liked by everyone because she treats everyone with courtesy. In her past life, she was Hina, the Queen of the "Kingdom" and a leader who guided everyone. She listened to everyone's opinions and was aware that Yura cared for Anne. She is one of the few people who knows Yura's true identity in this life. She supports Yura's devoted feelings for Anne. While aware of Konoe Kokonoe's feelings for her, she brushes them off and teases him.

A male physical therapist. He has a bright, unconventional, and lovable personality. In his past life, he was Nai, a knight of the "Kingdom" who stood at the front lines, and the very person who killed Anne. He has lost his memories of his past life. He is currently making aggressive advances toward Hime. He is troubled by the fact that the surgeon Ibuki Aoi treats him coldly for no apparent reason.

A surgeon at the hospital and the head of the medical department. He is the man the protagonist's mother is having an affair with. At first glance, he seems like a serious and kind man, but his true nature is pure evil. In his past life, he was the Demon King who gave Anne, an orphan, her evil powers. He approached the protagonist's mother in order to kill the protagonist, who is Anne's reincarnation. He intends to take the hospitalized protagonist's life because she still possesses her monstrous powers even after reincarnation. He is aware of his subordinate Ibuki's past life and views him as a threat.