In a small town in Yamanashi Prefecture at the foot of Mount Fuji, which Japan is proud of, the protagonist Kiyomi Endo (Mikoto Ichikawa)) is a single mother working in a business hotel. She accidentally encounters an alien one day, and the story begins.If she were a simple girl, she would establish friendship with aliens and fight for justice and evil... The youth adventure drama is about to begin. However, the adult Kiyomi, who has experienced the ups and downs of the world, will not offend the aliens.Asking her to resolve minor incidents in her work and personal life...

In the tranquil Yamanashi Prefecture, a small town nestles at the foot of Mount Fuji, where the 41-year-old Endo Kiyomi (Ichikawa Minori) lives here.She is an employee of a local business hotel and is a single mother raising her daughter Ruoye alone.Every morning, she prepares a lunch box for her daughter before going to work, and then handles the front desk work leisurely with her colleagues Yumi (Kaho) and Eri (Maki Sakai). This is her daily rhythm of life.

Although those willful residents are a headache, the boss Okuda (Naoki Tanaka) is approachable and the senior Takahashi (Akihiro Tsunoda) has a low sense of presence, so there is almost no pressure on interpersonal relationships in the workplace.Instead, she will quietly follow the social media updates of the unfamiliar cleaner Nakamoto (Noro Kayo), or find pleasure in fantasizing about the identity of the mysterious long-term guest Murakami (Kohinata Fumiyo).

Outside of work, she would have dinner with her local childhood friends Hazuki (Suzuki An) and Minami (Hiira Iwaji) every few months to talk about the current situation.In this way, the days passed blandly and quickly... Until one day, Qingmei almost encountered a traffic accident while riding her bicycle on the way home from get off work. Thanks to the timely help of her workplace senior Takahashi, she was able to avert the danger.

With extraordinary speed and strength, Takahashi rescued Qingmei including people and cars, and then confessed to Qingmei: “In fact, I am... an alien.”Takahashi, who has been hiding his true identity and living silently, used alien abilities in desperation to save Qingmei.

“You must never tell anyone about this.”Under Takahashi's repeated warnings, Kiyomi promised “I know and will keep it a secret”, but she couldn't help but tell Hazuki and Minami... Taking this as a trigger, the originally ordinary Kiyomi's lifeThings are starting to change...!

Kiyomi Endo (played by Minori Ichikawa), who works at a business hotel at the foot of Mount Fuji, one day learns that her workplace colleague Takahashi (played by Akihiro Tsunoda) is an alien.

Moreover, even though Takahashi repeatedly told Kiyomi not to tell anyone, Kiyomi couldn't help but tell her local childhood sweethearts Hazuki (Suzuki Anno) and Minami (Hiira Iwagami)...From then on, the four of them, Kiyomi, Hazuki, Minami, and Takahashi, began to share secrets.

Kiyomi, Hazuki, and Minami, who used Takahashi as an opportunity to see each other more frequently than before, reported to each other on the current situation while having lunch at a local restaurant on the weekends.Just a few days ago, Minami accepted a street interview with a TV station in front of a shopping mall. She was asked whether Mount Fuji belongs to Shizuoka or Yamanashi.“This question, he gave wonderful comments that will definitely be used... While chatting about these boring topics, Ye Yue said with a serious face: ”There is something I want to discuss with you...%.Hazuki, who works as a teacher in an elementary school, seems to be involved in trouble that may even jeopardize her future career as a teacher...

In order to solve Hazuki's troubles, Kiyomi and others wanted to rely on the power of the alien Takahashi, but they forcibly convinced Takahashi who was hesitant to use his powers casually.Sneaking into an elementary school late at night and trying to clean up the mess without being discovered by anyone...Can Kiyomi save her friends from the crisis with the help of aliens──!?