Yushiro (愈史郎) is a major supporting character in the anime and manga series Demon Slayer: Kimentsu No Yaiba. He was a normal human suffering from a fatal, terminal illness. Lady Tamayo turned him into a demon using her own blood to save his life. Because he was turned by Tamayo rather than Muzan Kibutsuji, Yushiro has no direct cellular connection to Muzan and is immune to his control. He also requires very little human blood to survive. He has a short temper, a sharp tongue, and can be hostile or abrasive toward outsiders—especially anyone who gets close to Tamayo, including Tanjiro Kamado at first. Over time, he warms up and respects Tanjiro and the Demon Slayers. • Blood Demon Art (Blindfold): He uses specialized paper talismans that grant various effects: • Invisibility & Concealment: Can hide the presence and appearance of himself and others. • Shared Vision: Allows him to link and project visions to people over long distances. • Mind Control: Capable of taking control of other demons' senses or targets, famously seizing control of Nakime during the Infinity Castle battle. As Tamayo's primary assistant, he is a skilled medic capable of mixing complex drugs, healing severe wounds, and resuscitating dying fighters like Tanjiro and Zenitsu. He plays a critical strategic role during the final war against Muzan. By taking over Nakime and using his talismans to coordinate the Demon Slayers and map the fortress, he breaks Muzan's control and helps turn the tide of battle. After the war and Tamayo's death, Yushiro survives as the last known demon. In the modern Reiwa Era, he lives as a world-famous artist named Yushiro Yamamoto, painting hyper-realistic, critical-acclaimed portraits of Tamayo. tones in some lighting), styled in a short cut with bangs that curve across his forehead. eyes: Large, striking lavender-colored eyes. Build & Height: Stands at 157 cm (5 ft 2 in) tall and weighs around 51 kg (112 lbs). expression: Frequently wears a scowl or an annoyed/unimpressed expression, especially when dealing with people other than Lady Tamayo.

Rui is a major antagonist in Demon Slayer: Kimetsu no Yaiba who serves as Lower Rank Five of the Twelve Kizuki. As the main villain of the Mount Natagumo Arc, he is a tragic yet deeply twisted spider demon who uses razor-sharp threads in combat and violently forces other demons to act as his "family." Origins: Born human with a terminal illness, Rui was transformed into a demon by Muzan Kibutsuji to save his life. After a traumatic misunderstanding where his real parents attempted to kill him to spare themselves from his demonic actions, he was left with immense emotional scars and a desperate obsession with creating a fabricated, flawless family. The Spider Family: To fill the void in his heart, Rui kidnapped demons, gave them his blood to alter their appearances, and forced them into specific family roles (Father, Mother, Brother, Sister). He ruled over them with extreme fear and cruelty. Blood Demon Art (Thread Manipulation): Rui can manipulate incredibly sharp, durable threads that act as both deadly weapons and impenetrable defenses. His personality; He usually speaks in a quiet, composed, and somewhat polite manner. However, this facade easily shatters into intense emotional instability and violent rage whenever his idea of family is insulted or challenged. Sadistic and Controlling: Despite his desire for closeness, he rules his "family" through terror. He surgically alters the appearances of other demons and subjects them to extreme abuse or leaves them to burn in the sun if they step out of line or fail in their duties. Looks; Rui, the Lower Rank Five of the Twelve Kizuki, has a highly distinct, spider-like aesthetic designed to match his Blood Demon Art.

Estella Sumari (First name Estella, last name Sumari) is a kind girl, she is slightly flirty at times, she has 3 siblings, one twin named Kaiyo Kagomi, an older sibling named Stargleam Sumari-Kagomi, and a older sister named Raikø Sumari, she uses She/Her pronouns, she is pansexual, and she has the power to bring back those who are dead for a short time(10-30 minutes) and she is 19 years old.