The story begins with MuMu, a cat-like alien from a distant galaxy, arriving on Earth with the mission to learn about Earth's home appliance technology. His species has lost all their scientists and engineers in a planetary war, and MuMu hopes to recover the lost technology by studying Earth's appliances. MuMu's arrival disrupts the ordinary university life of Sakurako Umeyashiki, a young woman who becomes his unexpected cohabitant.

At first, Sakurako is startled by MuMu's sudden appearance and peculiar behavior. MuMu, unfamiliar with Earth customs and technology, explores Sakurako's apartment, interacting with various household appliances in curious and often chaotic ways. His attempts to understand these devices lead to a series of comedic mishaps, including accidentally breaking a microwave and causing a small electrical fire, which Sakurako quickly extinguishes.

As MuMu settles in, Sakurako decides to help him learn about Earth's technology. They begin a routine where MuMu studies different appliances daily, with Sakurako acting as his guide. During this period, MuMu demonstrates unusual abilities, such as manipulating small electronic devices telekinetically, which both amazes and worries Sakurako.

Their peaceful coexistence is interrupted when Decimaru, an agent from MuMu's home galaxy, arrives on Earth. Decimaru's mission is to retrieve MuMu and bring him back, believing MuMu's presence on Earth could jeopardize their species' recovery efforts. A tense confrontation ensues in Sakurako's apartment, where MuMu uses his alien powers to evade capture, leading to a chase through the city.

During the chase, MuMu and Sakurako navigate crowded streets and use various appliances and gadgets to outsmart Decimaru. MuMu's knowledge of Earth technology grows, and he cleverly employs household items as tools and weapons. Sakurako, initially frightened, becomes more confident and resourceful, assisting MuMu in escaping several close calls.

After evading Decimaru, MuMu reveals to Sakurako the full extent of his species' plight: their civilization is on the brink of collapse without their lost technology. He expresses a deep desire not only to recover the technology but also to understand the meaning of companionship and home, which he finds in his growing friendship with Sakurako.

Meanwhile, Akihiro Tsurumi, a university professor and Sakurako's mentor, becomes suspicious of the strange occurrences around Sakurako's apartment. He investigates and eventually discovers MuMu's existence. Instead of reacting with fear, Akihiro offers to help MuMu, fascinated by the alien's technology and plight. Together, they devise a plan to create a device that can transmit Earth's appliance technology data back to MuMu's home planet.

As they work on the device, Miwa Samezu, a government official monitoring extraterrestrial activity, learns about MuMu and attempts to capture him for study. This leads to a confrontation at the university lab where the transmission device is being built. MuMu, Sakurako, Akihiro, and their friends must defend the lab using a combination of alien powers and Earth technology.

In the climax, MuMu successfully activates the transmission device, sending the accumulated knowledge of Earth's appliances to his home galaxy. However, this act triggers a signal that attracts a hostile alien faction intent on seizing the technology for themselves. A battle ensues on Earth, with MuMu and Sakurako fighting alongside their allies to protect the technology and their newfound friendship.

The final sequence shows MuMu deciding to stay on Earth temporarily, choosing to continue learning and living with Sakurako rather than returning immediately. The series ends with a scene of MuMu and Sakurako sharing a quiet moment, looking at the stars, symbolizing their bond and the ongoing adventure ahead.

The ending of Me and the Alien MuMu Season 1 concludes with MuMu successfully recovering the lost home appliance technology for his species, while Sakurako embraces the changes in her life brought by MuMu's arrival. The final scenes show MuMu preparing to return to his galaxy, leaving Sakurako with a deeper understanding of friendship and technology.

In the final episode of Me and the Alien MuMu Season 1, the story unfolds in a detailed, scene-by-scene manner:

The episode opens with MuMu and Sakurako working together in Sakurako's apartment, surrounded by various Earth home appliances. MuMu is intensely focused on analyzing and understanding the technology, using his alien knowledge to piece together the missing elements his species lost. Sakurako watches with a mix of curiosity and admiration, her usual university life now intertwined with this extraordinary mission.

As the day progresses, MuMu encounters several technical challenges. He experiments with different appliances, sometimes causing humorous malfunctions that disrupt the apartment's calm. Sakurako helps by troubleshooting and offering insights from her everyday experience with these devices. Their teamwork highlights the growth of their bond, moving beyond mere cohabitation to genuine friendship.

Midway through the episode, a tense moment arises when a rival alien faction arrives on Earth, intent on capturing MuMu to exploit his technology. This confrontation leads to a brief but intense chase through the city streets, showcasing MuMu's agility and Sakurako's quick thinking. They manage to evade capture, reinforcing the stakes of MuMu's mission and the dangers involved.

Returning to the apartment, MuMu finally completes the reconstruction of the lost technology. He activates a small device that emits a soft glow, symbolizing the restoration of his species' technological heritage. MuMu expresses gratitude to Sakurako, acknowledging how her support was crucial to his success.

The closing scenes focus on MuMu preparing to leave Earth. He packs his belongings, including a few Earth appliances as mementos. Sakurako stands by the door, a mixture of sadness and hope in her eyes. MuMu promises to visit again and encourages her to continue exploring the wonders of technology and life.

The final shot lingers on Sakurako watching the night sky as MuMu's spaceship ascends, leaving a trail of light. The episode ends on a hopeful note, emphasizing themes of friendship, discovery, and the bridging of worlds.

Regarding the main characters' fates:

• MuMu completes his mission successfully and returns to his galaxy, enriched by his experiences on Earth and the friendships he formed.
• Sakurako embraces the changes in her life, inspired by MuMu's visit to pursue her interests with renewed passion and openness to the unknown.

This detailed ending encapsulates the series' blend of comedy, science fiction, and heartfelt character development without condensing or glossing over key moments.

The TV show "Me and the Alien MuMu," Season 1 (2025), does have a post-credit scene. In the final episode, after the main story concludes, the post-credit scene features a brief but significant moment that hints at future developments. It shows MuMu and Sakurako sharing a quiet, reflective moment together, underscoring their deepening bond and the unresolved mysteries about MuMu's mission and the alien technology. This scene sets up anticipation for the continuation of the story in the second cour of the anime, emphasizing the ongoing adventure and the challenges ahead.

This post-credit scene is subtle and character-focused rather than action-packed, providing emotional closure while teasing the next phase of the narrative. It aligns with the show's blend of comedy, sci-fi, and heartfelt moments, leaving viewers eager for more without revealing major plot twists prematurely.

MuMu is a cat-like alien from a distant galaxy whose species lost all their scientists and engineers in a planetary war. He comes to Earth specifically to learn about home appliance technology to recover the technology his species has lost.

Sakurako, a university student with a typical life, experiences a drastic change when MuMu arrives and they begin cohabiting. Their unexpected living situation leads to chaotic events and a comedic adventure centered around appliances and their chemistry.

Home appliances are central to the plot as MuMu's goal is to study Earth's home appliance technology to restore his species' lost knowledge. The story features many appliance-related comedic and spectacular events.

Besides Sakurako and MuMu, key characters include Junichiro Anamori, Akihiro Tsurumi, Wataru Tenkubashi, Tamotsu Rokugo, Decimaru, Miwa Samezu, Siberia, and Sonoko Hanazuki, who contribute to the unfolding comedic and sci-fi events.

Their relationship evolves from an unexpected cohabitation into a dynamic chemistry that drives the story's comedy and adventure, blending elements of friendship, curiosity, and mutual learning amid chaotic situations.

The TV show "Me and the Alien MuMu," season 1 (2025), is generally a lighthearted comedy and science fiction series centered on a cat-like alien and a university student. It is primarily comedic and whimsical, focusing on the alien's curiosity about Earth appliances and the chaotic but humorous events that follow. The tone is playful and suitable for a broad audience, including younger viewers.

However, for family-friendliness and sensitivity considerations, there are a few points to note without spoiling the plot:

• The show contains some chaotic and slapstick comedy scenes that might be loud or intense for very young or sensitive children.
• There may be mild sci-fi fantasy elements involving alien technology and unusual situations that could be confusing or unsettling for very young children.
• There is no indication of graphic violence, strong language, or adult themes from available information.
• The humor and situations are mostly light and revolve around everyday life and alien misunderstandings, making it suitable for older children and family viewing.

Overall, "Me and the Alien MuMu" appears to be family-friendly with no major objectionable content, but parents of very young or sensitive children might want to preview it for the occasional chaotic or intense comedic moments typical of slapstick sci-fi comedy.