Naraku holds the position of priestess and guardian for the Reincarnation Sphere in the Goshin Clan. Her name functions as a title, combining Japanese elements suggesting the underworld ("Nara") and comfort or music ("ku"). Assigned this duty from childhood, she remained confined within an isolated village, dedicating all her time to overseeing the sphere, which prevented typical childhood experiences. She accepted this responsibility without resentment, often smiling at the sphere while visualizing the developing being within, Kagura, who would become her first friend. These emotional expressions reached Kagura during her incubation. Her appearance includes shoulder-length pale green hair, pink eyes, and a relatively short stature. She typically wears a black sleeveless top layered with a small orange jacket, long white socks, and black sandals. A distinctive red scarf, fastened with a yellow pin and green Shinobi Stones, completes her outfit, and she carries a green bag. Upon the hatching of the Reincarnation Sphere, Kagura emerged, and Naraku permanently became her protector and companion. Naraku maintains constant proximity to Kagura, motivated by both duty and genuine friendship. She generally presents a serious and reserved demeanor to others but expresses her true emotions freely around Kagura, displaying deep loyalty and protectiveness. In combat, Naraku employs an expandable metal ball connected by a chain to her ankle. Her fighting style involves swinging this weapon, which appears slow but delivers unexpectedly quick strikes. Her techniques incorporate symbolism related to the afterlife and underworld, reflecting her name's meaning. Specialized Ninja Arts include "Six Paths of Samsara" for engaging multiple foes and "Six Paths to the Underworld" for single opponents; however, these attacks can inadvertently knock enemies out of effective range due to significant knockback. Her left eye may have an impairment, potentially referencing an injury from prior missions, though this remains unconfirmed in primary storylines. Naraku appeared in *Senran Kagura 2: Deep Crimson*, accessible in the dressing room after completion but not as a playable character; players could adjust her expressions but not her outfit or accessories. She later became playable as downloadable content in *Senran Kagura: Estival Versus*, joining the roster without participating in the main narrative. Her combat maintained her ball-and-chain weapon characteristics, with notes that her frantic mode did not resolve her inherent range limitations against distant or aerial opponents. In *Senran Kagura: Peach Beach Splash*, Naraku and Kagura received an invitation to the tournament depicted in the game's prologue. Their involvement did not extend beyond this initial appearance, offering no substantial story progression or character development. Her narrative role remains focused exclusively on her guardianship of and relationship with Kagura.