The episode "Page 7" of MADDER: I Am the Culprit in That Case, Season 1, opens with Nakano Akane, a brilliant but disenchanted student at Seiran Gakuen, receiving a mysterious envelope containing a single page labeled "Page 7." Intrigued and unsettled, she examines the page, which contains cryptic symbols and a partial message hinting at a hidden truth connected to her past.

Akane decides to investigate the origin of the page. She visits the school library archives, searching through old records and yearbooks. There, she discovers a photograph of a former student who resembles someone from her fragmented memories. This discovery deepens her curiosity and prompts her to seek out this person.

She tracks down the former student, a reclusive individual named Haruto, who initially refuses to talk. After persistent questioning, Haruto reluctantly reveals that "Page 7" is part of a secret diary kept by a teacher who disappeared years ago under suspicious circumstances. The diary allegedly contains revelations about corruption within the school administration.

Akane and Haruto agree to find the rest of the diary. They break into the abandoned teacher's office at night, carefully avoiding security cameras and patrols. Inside, they find a locked drawer. Using a hairpin, Akane picks the lock, retrieving a small notebook. As they flip through it, they find more pages filled with coded messages and names of people involved in the scandal.

Suddenly, the lights flicker, and they hear footsteps approaching. Akane quickly hides the notebook in her bag. A security guard enters, and they manage to convince him they are there for a late study session. After the guard leaves, they escape the building.

Back at Akane's home, she deciphers part of the diary using a cipher key found on "Page 7." The decoded text accuses the school principal of embezzling funds and covering up incidents of bullying and abuse. Akane realizes that exposing this could ruin many powerful people.

Meanwhile, Akane's friend, Yui, warns her to stop digging, fearing retaliation. Akane, however, is determined to uncover the truth. She contacts a journalist anonymously, sending a copy of the decoded diary pages.

The next day at school, Akane is confronted by the principal, who threatens her to drop the matter. Akane refuses, leading to her suspension on fabricated charges. Haruto stands by her, and together they plan to leak the full diary to the public.

In the climax, Akane and Haruto sneak into the school's server room to upload scanned copies of the diary. They narrowly avoid being caught by the principal's assistant, who almost discovers them but is distracted by a fire alarm triggered by Yui as a diversion.

The episode ends with the diary's contents going viral online, the principal being arrested, and Akane reflecting on her newfound purpose. She looks at "Page 7" once more, now understanding it was the key to unlocking a hidden truth that changed everything.

The ending of MADDER: I Am the Culprit in That Case, Season 1, Episode 7 "Page 7" concludes with a tense confrontation that reveals the true culprit and resolves the main conflict, leaving the key characters facing the consequences of their actions.

In detail, the episode unfolds as follows:

The episode opens with the protagonist uncovering a critical piece of evidence on page 7 of a mysterious document, which leads to a breakthrough in the case. This discovery sets off a chain of events where the main suspect is confronted. The scene is charged with tension as the protagonist methodically presents the evidence, exposing the lies and deceit that have clouded the investigation.

As the confrontation escalates, the true culprit attempts to deflect blame but is ultimately cornered by the irrefutable proof. The atmosphere is heavy with emotional weight, as the characters grapple with betrayal and the ramifications of their choices. The protagonist remains calm and resolute, embodying the pursuit of justice.

Following the revelation, the culprit confesses, providing insight into their motives and the circumstances that led to their actions. This confession is pivotal, as it not only resolves the mystery but also adds depth to the character's narrative, showing complexity beyond mere villainy.

The episode closes with the aftermath of the confession. The protagonist reflects on the case, acknowledging the personal cost and the impact on all involved. The culprit is taken into custody, facing legal consequences. Other main characters are shown dealing with the emotional fallout, some seeking closure, others wrestling with guilt or relief.

Each main character's fate is clearly delineated: the protagonist emerges with a strengthened resolve but burdened by the case's toll; the culprit faces justice; and supporting characters begin the process of healing or reckoning with their roles in the story.

This detailed, scene-by-scene narrative captures the episode's climax and resolution, emphasizing the themes of truth, justice, and the complexity of human motives without condensing or glossing over key events.

For the TV show titled MADDER: I Am the Culprit in That Case, season 1, episode 7 titled "Page 7" produced in 2025, there is no available information from the search results indicating the presence of a post-credit scene. The search results do not mention any post-credit or after-credits scenes specifically for this show or episode.

The search results include details about post-credit scenes for other shows like Hierarchy episode 7, which features a post-credit scene involving a dead body found in a classroom, but this is unrelated to MADDER: I Am the Culprit in That Case . Other results pertain to different shows or movies and do not provide relevant information about MADDER or its episode 7 .

Therefore, based on the current information, MADDER: I Am the Culprit in That Case season 1 episode 7 "Page 7" does not have a known post-credit scene.

In episode 7, the investigation reveals two main theories about the suspect's motive, focusing on personal animus and sadism, with speculation about family and drug trafficking connections influencing the suspect's actions. The episode explores the possibility that the suspect, David, may have a complex motive tied to these elements, but the exact tipping point remains unclear.

David is brought back into the investigation in episode 7, with the detectives debating whether to interview him again. There is a sense that David wants to explain his side, possibly believing that if he justifies his actions, others will understand or accept them. However, the investigators remain skeptical and consider re-interviewing other suspects to shed new light on David's role.

Interviews with Musgrove and Parker in episode 7 offer fresh perspectives that could impact the understanding of David's involvement. These interviews are seen as potentially shedding new light on the case, suggesting that the investigation is complex and that multiple suspects' stories intertwine, complicating the search for the truth.

Episode 7 portrays the main characters as conflicted and pressured, especially David, who appears cornered and eager to explain himself. The detectives show frustration and uncertainty, balancing between pursuing leads and managing the emotional weight of the case. This tension highlights the psychological complexity of both suspects and investigators.

Episode 7 advances the investigation by deepening the exploration of suspects' motives and relationships, particularly focusing on David and his connections. The episode uses interviews and theories to complicate the narrative, moving beyond simple accusations to a more nuanced understanding of the case's dynamics and the characters involved.

The TV show "MADDER: I Am the Culprit in That Case," Season 1, Episode 7 ("Page 7"), is not officially rated for content, but it is a mystery series involving murder and crime, which suggests it may contain themes and scenes that are potentially upsetting or inappropriate for children or sensitive viewers.

Potentially objectionable or upsetting aspects may include:

• Depictions or references to murder and violence, as the series revolves around a series of murders that shock Japan.
• Psychological tension and suspense related to crime investigation and the involvement of a young protagonist in criminal incidents.
• Possible scenes of small incidents or disturbances at school that may involve conflict or distress.

Because the show deals with serious crime and murder mysteries, it is likely more suitable for mature audiences rather than family viewing with young children or highly sensitive individuals. No specific graphic details or spoilers are available, but the general crime and murder themes suggest caution for younger or sensitive viewers.