Why Does Nobody Remember Me in This World? Episode 1: The Boy Forgotten by the World

The episode opens with an abstract, almost digital wave of blue light and debris, a stark visual for the narrator's philosophical musings. He equates judgment to a wave, sweeping away sandcastles built by criminals. Sakuya Ootsuki appears silhouetted against this shifting backdrop, his form both determined and pained. The ominous title, "Killed Again, Mr. Detective," then appears, setting a dark, cyclical tone for the series.

Following the ominous title, a vibrant and energetic credit sequence unfolds, introducing the main players through stylized animation. We see Lilithea and a detective-hat-wearing dog, then key figures like Yurii Haigamine, Sozoro Akechi, and Makoto Katsuragi in dynamic split screens. Symbolic moments, like Tatsuya with Lilithea's comforting hand, Sakuya underwater, and the romantic ballroom dancing between Sakuya and Lilithea, hint at their relationships and underlying tensions. The final image of Sakuya's tie and Lilithea's bow intertwined sets a powerful, romantic, yet potentially tragic tone.

The visual shifts to the mysterious interior of a space adorned with various tribal and theatrical masks. This sets a tone of hidden identities and perhaps multiple personas, echoing the maid, Lilithea, who is first seen in a blurred, intimate shower scene. Her serious, wide purple eyes looking directly at the viewer suggest a depth beyond her domestic role, hinting at secrets and a sharp perception.

We finally meet Sakuya Ootsuki in his cozy, intellectual office, a space filled with books and a dartboard. He narrates, not about a current case, but about his legendary father, Tatsuya, whom he describes as an unstoppable force. Sakuya then reveals his own peculiar habit: writing a meticulously crafted will every day, a ritual he attributes to bizarre superstitions like a broken shoelace. This reveals a character who is both intellectual and embraces the absurd.

The domestic scene reveals the unusual dynamic between Sakuya and Lilithea. She is caught sniffing his uniform, an intimate gesture quickly brushed off. Yet, her subsequent calm deduction of his recent activities, from specific perfume scents to a visit to the nurse's office, is chillingly precise. Sakuya's flustered attempts to explain away a flirtatious encounter are easily dismantled by Lilithea's keen, almost supernatural, senses.

Lilithea informs Sakuya that his legendary father, Tatsuya, has departed for a high-stakes hijacking case involving a 9-year-old girl and 179 hostages. Sakuya recognizes the gravity, sending a wry message to his father about not "falling and getting in the way." His own assignment, however, is a mundane infidelity investigation. Lilithea expresses disappointment, urging him towards grander, more "masculine" cases like mansion murders, which Sakuya reluctantly rejects.

The seemingly simple infidelity case takes Sakuya and Lilithea aboard the 'QUEEN IRIY', Japan's largest cruise ship. Their target is Makoto Katsuragi, a film distributor, who offers a knowing smirk upon seeing them. Lilithea highlights Katsuragi's suspicious purchases and rented mansion, suggesting a more complex situation than a mere affair. Sakuya also receives a text from his father, further reinforcing their differing investigative paths.

A surprise encounter on the ship places Sakuya face-to-face with Sozoro Akechi, another detective on a vacation arranged by his brother. Sozoro expresses relief that Sakuya's infamous father, Tatsuya, isn't present, warning Sakuya to stay out of trouble. His sarcastic offer of legal assistance underscores Sakuya's reputation as a magnet for calamity. Sakuya dismisses the encounter, but the appearance of a familiar face adds an unsettling layer to his "safe" assignment.

Sakuya and Lilithea attend the ship's circus performance, observing their target, Katsuragi. Sakuya initially claims disinterest, but the aerialists and knife-throwers quickly captivate him, his wide, fearful eyes betraying his true reaction. Lilithea subtly offers comfort, gripping his hand, as he admits to a newfound appreciation for the thrill. This moment of connection prompts Sakuya to reflect on their past, recalling how he met Lilithea during one of his father’s cases and how she came to live with them afterwards, cementing their unique bond.

The circus tent's glittering ceiling gives way to the thrumming engines of motorcycles preparing for the "Globe of Death" act. Sakuya remarks on the inherent danger, noting the act's "terrible name." The title card, "Killed again, Mr. Detective," then reappears with stark finality, juxtaposing the manufactured thrill of the circus with a chilling premonition of real-world violence and the cyclical nature of the detective's fate.

As night falls, Sakuya and Lilithea divide their duties, with Sakuya off to "infiltrate" the staff. Lilithea sternly warns him against the ship's glittering temptations, a caution he confidently dismisses. He finds himself in a men's restroom, muttering about his father's strict investigative principles, when Yurii Haigamine, the rookie actress, comically falls from the ceiling. Flustered, she explains she was searching for a cat, "Ruru-chan," when the panel broke, leading Sakuya to reluctantly agree to help.

Sakuya, now on the hunt for "Ruru-chan," navigates the ship's dark, pipe-filled corridors. Yurii, with a hint of worry, warns Sakuya that he, like his "master," is susceptible to being killed, a strange caution he quickly dismisses. He encounters a blank-faced security guard who allows him to proceed further into the dimly lit, crate-filled warehouse.

Deep within the warehouse, amidst stacked crates, Sakuya calls out for the cat. A scurrying rat and the sight of a clown mask and juggling pins on a crate add to the eerie atmosphere. He then notices a distinctive motorcycle. His observation quickly turns to terror as he spots a body hanging from the ceiling, its feet visible, an undeniable sign of murder.

Horrified, Sakuya fumbles for his phone, frantically calling his father. The remote control hanging near the victim's body sparks a terrible realization in him. As he desperately tries to explain his predicament, his father, Tatsuya, dismissively mentions enjoying darts, further enraging Sakuya. His plea for help is cut short as a cloaked clown emerges from the shadows, stabbing him in the chest. Sakuya falls, blood dripping, a faint smile on his face as he succumbs to his wound.

After Sakuya's tragic demise, the episode transitions into a long sequence of ending credits, focusing entirely on Lilithea. She is depicted in various pensive states: walking an empty road, standing in a park, by a lamppost, and gazing at a city skyline, reinforcing her role as the quiet observer left to endure. Her serenity, even amidst the sadness, speaks volumes. The final moments then cut to a stark black screen, teasing "Queen Irie Murder Case - Part 2," confirming that Sakuya's shocking death is not the conclusion, but merely the catalyst for a larger, unfolding mystery.