DEAD DEAD DEMONS DEDEDEDE DESTRUCTION: Season 1 (2024)

Three years before the main story, a massive alien mothership suddenly appears in the sky over Tokyo, causing widespread unease among the citizens of Japan who continue their daily lives despite the uncertainty.

Kadode Koyama and her best friend Ouran "Ontan" Nakagawa, high school students preparing for graduation, meet for the first time at summer camp inside a drainage tunnel where they encounter the first alien, sealing their friendship through this life-changing event.

Kadode, dealing with her father's disappearance and her hypochondriac mother's needs, decides to forgo college and enter the workforce to support her family, adopting a pessimistic demeanor about her future while remaining passionate about video games and her favorite manga character Isobeyan.

In school, Kadode speaks bluntly with her homeroom teacher who expresses concern over her poor grades and nonchalant attitude, telling him her grades do not matter since she is not attending college, but she excitedly shares details about Isobeyan when her backpack is noticed.

One of the mysterious smaller spaceships crash-lands in a dimly lit neighborhood, revealing battered and bruised unidentified humanoid alien creatures emerging from it as passengers.

Kadode takes it upon herself to use the invaders' tools to assist those in need.

On a sweltering summer day, Kadode attempts to help a pregnant woman stranded at a closed railway crossing using the alien tool, but she inadvertently causes a train derailment.

Horrified by the unintended consequences that result in harm despite her good intentions, Kadode becomes devastated.

Determined to make amends and never fail again, Kadode vows to continue her efforts.

Following this event, Kadode decides to form a vigilante group called the Demons with her classmates to fight societal injustices, starting with minor misadventures in their school environment.

The Demons' activities escalate with the "Doraemon" factor from the alien tools, turning their crusade more serious.

Kadode's involvement in the Demons' missions transforms her into a ruthless and soulless person.

Ontan notices the drastic change in Kadode and, upon discovering her activities, tries to reason with her.

Kadode and Ontan have a violent quarrel that irreparably sours their friendship.

Kadode's best friend dies in a way Ontan cannot understand.

Ontan decides to use Isobeyan's time machine to save Kadode from her death.

The alien warns Ontan that rewriting the timeline could lead to far worse scenarios, such as the annihilation of mankind due to the alien invasion, but Ontan proceeds because Kadode's death is the worst scenario for her.

Ontan succeeds in her plan, saving Kadode from the fate in the previous timeline, but as predicted, the price is high: the mothership arrives in the skies over Tokyo.

World institutions prove totally incapable of establishing peaceful dialogue with the aliens, and the situation degenerates.

The alien mothership explodes, catapulting humanity into a post-apocalyptic dystopia known as after August 32nd, the day the world as known ends, with a countdown clock marking the approach throughout the story.

In the post-explosion world, characters including someone who had their body taken over by an invader for eight years discuss events, with the invader leaving a note apologizing for the possession and the lost years.

This person mentions having protected the girls, but Suier had disappeared recently.

The group goes outside while explaining to Noou about the mothership explosion and the appearance of asteroids, and they find Suier's body with a hole blown out of her side, clearly murdered.

While walking, possibly toward Tokyo, the group gets attacked by a government-controlled robot that shoots at them because Kiwia is using an unapproved cell phone, enforcing strict rules on unauthorized presence outside.

In the ending of Dead Dead Demon's Dededede Destruction season 1, a piece of UFO debris falls on Kadode and Ouran, seemingly killing them both in their timeline, while Kenichi and Hikari are killed by an orbital laser; the story then shifts to reveal multiple timelines, culminating in a third timeline where no invasion occurs, Kadode and Ouran grow old together as friends, Kadode becomes a manga editor, and Ouran works on AI robots, with their souls implied to persist across realities.

Now, let me take you through the finale scene by scene, as the story unfolds in episode 17, picking up the threads of destruction, timelines, and fragile human bonds.

The episode opens with Kadode and Ouran in the midst of chaos, exaggerating the effects of UFO debris on themselves to maximize welfare checks from the government. A massive piece of debris suddenly plummets from the sky and crashes directly onto both of them, crushing them instantly under its weight. Their bodies lie motionless in the rubble, blood pooling around them, marking the apparent end of their lives in this timeline. Kadode, the girl who wielded Invader tools to help others but spiraled into despair after causing a train derailment while aiding a pregnant woman, perishes here. Ouran, her steadfast friend who tried to pull her back from ruthlessness, dies alongside her.

The narrative flashes back and forward, revealing the broader context of timelines. In the first timeline, Kadode turns into a killer, going on a murder spree after losing her way, eventually committing suicide by jumping off a parapet while clutching a copy of her favorite manga, Isobeyan, in front of Ouran, who watches helplessly. Kadode's father learns of this later and regrets his neglect, realizing he made her feel unloved.

In the second timeline--the main one viewers followed--Ouran intervenes to save Kadode from suicide, but this action triggers the full alien invasion. The mothership arrives over Tokyo, world leaders fail to negotiate, and it explodes, hurling humanity into post-apocalyptic ruin. Kadode's dad is revived by the Invaders in this wasteland; he survives among survivors, encounters Makoto who saves him, and grapples with his failures as a father. Nobuo risks his life to the end, possibly saving the planet by confronting the Invaders or the scout.

Meanwhile, in this same timeline's climax, Kenichi, driven by delusions of grandeur, meets his end when an orbital green death laser strikes him. Hikari dies with him in the blast, ensuring the AI robots under S.E.S. control continue their genocide against mankind unchecked, as the government prioritizes the rich and powerful.

The story then pivots to the third timeline, free of invasion. Kadode and Ouran meet at summer camp, their early friendship untouched by aliens or murder. They grow up together: still befriending Kiho in high school, but meeting Rin and Ai only in college since no attack forces school changes. Kadode pursues her father's path, becoming a manga editor. Ouran lands a job at S.E.S., developing their new AI-controlled robot buddies. They age gracefully side by side, their bond enduring into old age--Kadode with green glasses instead of red, her favorite manga slightly altered, suggesting subtle butterfly effects prevented the scout's negative view of humanity or diverted the invasion entirely. Kadode's dad, in this reality, avoids his regrets, implied to have handled things better from the start. Nobuo and Makoto's paths from episode 0 tie in, with Nobuo confirmed to have fought to the end. Ouran and Kadode's souls, the one absolute element, carry forward, destined to reunite no matter the timeline.

In this final timeline, Kadode lives a full life as a manga editor, growing old happily with Ouran by her side. Ouran thrives in her AI robot career, remaining Kadode's closest companion. Kenichi and Hikari are dead from the laser in the second timeline. Kadode's dad survives and redeems himself across timelines, living in the post-apoc world of the second but implied to fare better in the third. Nobuo perishes heroically, his soul possibly transferring to another timeline. Makoto survives, aiding Kadode's dad. The Invaders and their scout never fully invade the third timeline, leaving humanity intact.

No, there is no post-credits scene mentioned or described in available reviews and episode analyses of Dead Dead Demons Dededede Destruction Season 1. Discussions of Episode 0 explicitly note the end of the episode after a scene involving a university summer camp photo, followed by comments on the credits animation itself differing in style from the main episode--more detailed and fantastical with high-res images--but no additional content plays after those credits. Other sources covering Episodes 0-1 and later episodes focus on plot, themes, and production without referencing any post-credits material.

In Episode 0 of Dead Dead Demons Dededede Destruction Season 1, Nobuo awakens after being controlled by an Invader parasite embedded in his head for the last eight years. His companions check his head, pulling back his skin to reveal the dormant Invader, which they declare gone, allowing Nobuo to regain control as he learns about the mothership's explosion and the appearance of asteroids. Emotionally shattered yet determined, Nobuo calls out for his daughter Kadode, insisting on searching for her despite the ruined world outside their refuge, a place rife with power struggles and inequality. They find Kadode's classmate's body with a hole blown out of her side, heightening the stakes, before a government-controlled robot attacks them over an unauthorized cell phone, forcing a tense escape. Ultimately, the private security group Ship rescues Nobuo in a van just as New Japan Harmony fires an RPG, pulling away as the explosion lights up behind them, leaving Nobuo safe but haunted by loss and the clue to his family's whereabouts.

Kadode Koyama faces a devastating home life where radiation from the US nuclear bombing of the alien spacecraft over Tokyo triggers her mother's hypochondria, spiraling into abusive control that shames Kadode for seeking independence, such as forgoing college to support the family after her father's disappearance. The mother's paranoia weaponizes medical fears to demand perpetual control, isolating Kadode further as her new fiancé Takabatake weakly tries to intervene but allows the abuse to continue, stepping all over him. Amid this emotional suffocation, best friend Ouran 'Ontan' Nakagawa provides quiet, steadfast support, cheering her up and standing by her through the chilling family dynamics under the looming mothership.

The friendship between Kadode Koyama and Oran 'Ontan' Nakagawa solidifies at summer camp through their first encounter with an alien inside a drainage tunnel, an event mirroring a ghostly meeting and forever altering their lives by sparking Kadode's formation of the Demons vigilante group with classmates to fight societal injustices. This 'Doraemon' factor escalates their misadventures from school issues to larger crusades, transforming Kadode into a ruthless figure that strains her bond with Ontan, who notices the soulless change and quarrels violently with her upon discovering her activities, irreparably souring their relationship in that timeline.

An Invader parasite controls Nobuo for eight years, embedding in his head until his companions pull back his skin to expose it as dormant and declare it gone, freeing Nobuo to regain autonomy amid exposition on the mothership's destruction and asteroid emergence. This physical and mental liberation hits Nobuo with grief over his changed world and missing daughter Kadode, propelling his desperate quest outward into dangers like government robots and security groups, his hesitation giving way to resolve as Ship rescues him from an RPG blast, the Invader's departure symbolizing a personal awakening in the post-apocalyptic chaos.

Episode 1 culminates in a dimly lit neighborhood where one of the mysterious spaceships crash-lands, unveiling battered and bruised unidentified humanoid creatures emerging from the wreckage, their injuries possibly from the impact alone, heightening the grounded adolescent struggles of Koyama, Ontan, and friends against the alien backdrop. This visceral reveal amid widespread unease from the mothership's arrival three years prior underscores the trauma and maturing forced upon the protagonists, blending everyday high school planning with the unfolding invasion mystery.

No, Dead Dead Demons Dededede Destruction Season 1 is not family friendly due to its mature themes and graphic content, rated TV-14.

Potentially objectionable or upsetting elements for children or sensitive viewers include: - Depictions of abuse and mental illness, including hypochondria. - Teenagers expressing extreme lust for teachers. - Bombings, death by guns, police and military violence. - Body horror and gore. - References to adult/minor relationships, sexual content, and death of a parent.