TV-Series
Description
Ogin, a supernatural entity and core member of the Ongyou, dedicates herself to punishing sinners radiating dark auras, primarily murderers. Her appearance is attractive and voluptuous, marked by red eyes and black hair reaching her chest; she often wears traditional accessories like bracelets and sandals.

Fifteen years before the main events, Ogin and her parents fell victim to Kinzo Sasamori, a corrupt official posing as her father, Giamon of Inarizika. Sasamori exploited homeless laborers and spread rumors of Giamon being a Kowai spirit to control the populace. This murder occurred when Ogin was around ten years old. Now undead, she manifests as a young woman in her mid-twenties, experiencing an immortality that effectively began at twenty despite her childhood death.

As an Ongyou puppeteer, Ogin wields a puppet resembling a young girl with a white-powdered face, red lipstick, and a kimono, using it to deceive and lure targets. She frequently employs her beauty and feminine allure to manipulate situations, embodying femme fatale tactics. She initially scorns the human protagonist Momosuke Yamaoka for his idealism and naivete, mockingly calling him "Author" and teasing him after their first encounter where he accidentally saw her bathing. Gradually, she develops respect for him, adopting some of his methods against evil despite her skepticism.

Driven by her traumatic past, Ogin strives to prevent other children from suffering similarly, exemplified by her intervention to save childhood friend Yae from Kichibe's madness during the "Willow Woman" incident. Her dynamic with Momosuke evolves into an implied romantic connection, though it remains unresolved.

In the final confrontation against their former superior, Kyogoku Tei, Ogin joins her fellow Ongyou in a heroic sacrifice to defeat him. Her last act is addressing Momosuke by his real name instead of "Author," signaling a shift in their relationship. Her ultimate fate stays ambiguous, with the possibility that she and the other Ongyou endure in some form after Momosuke completes and publishes his anthology of ghost stories.