"Dusk Maiden of Amnesia" is a supernatural romance anime set in Seikyou Private Academy, where rumors of paranormal activity circulate among the students. The story centers on Yuuko Kanoe, a ghost who haunts the school and has no memory of her past or how she died. Teiichi Niiya, a first-year student, encounters Yuuko in an abandoned school building and becomes the only person who can see her. Intrigued by her mysterious existence, Teiichi decides to help Yuuko uncover the truth about her death and her forgotten memories.

As the narrative progresses, Teiichi and Yuuko form a close bond, with their relationship evolving from curiosity to affection. Alongside Teiichi’s childhood friend, Kirie Kanoe, and the skeptical but curious Momoe Okonogi, they investigate the school’s dark history and the events surrounding Yuuko’s death. The series intertwines elements of mystery, horror, and romance, as the characters delve into eerie occurrences and confront unsettling truths about Yuuko’s past.

Yuuko’s character is portrayed as playful and mischievous, often teasing Teiichi, but she also harbors a deep sadness and longing tied to her unresolved memories. Teiichi, on the other hand, is determined and compassionate, driven by his desire to help Yuuko find peace. Kirie and Momoe provide additional perspectives, with Kirie’s familial connection to Yuuko adding layers to the mystery and Momoe’s skepticism grounding the story in a more rational viewpoint.

The plot explores themes of love, loss, and the lingering effects of unresolved trauma, as Yuuko’s fragmented memories gradually come to light. The series balances moments of lighthearted humor with darker, more emotional undertones, creating a narrative that is both engaging and poignant. Through its exploration of Yuuko’s past and her relationship with Teiichi, "Dusk Maiden of Amnesia" presents a compelling blend of supernatural intrigue and heartfelt romance.