A possible concise summary is:
This is a summary of a video that tells the story of Akira, a young man who hates his job and feels like a zombie until a real zombie apocalypse happens and he decides to make a list of 100 things he wants to do before becoming a zombie. He meets his best friend Kencho and a tough girl named Shizuka, and they have many adventures together. They also face Akira's former boss, Kozuki, who is a tyrant who exploits the survivors at an aquarium. Akira manages to defeat a zombie shark and become a superhero who saves everyone. He also quits his job and shares his list with his friends, who have their own dreams. The video ends with a post-credit scene where Kozuki is left alone and asks the viewers to comment, like and subscribe.
Here are the key facts extracted from the text:
1. The text is a summary of a zombie story called "There are 100".
2. The protagonist is Akira, a young man who hates his job and feels like a zombie.
3. A zombie apocalypse breaks out and Akira sees it as a blessing to escape his work.
4. Akira makes a list of 100 things he wants to do before becoming a zombie, such as confessing his love, camping, riding a motorcycle, and being a superhero.
5. Akira meets his best friend Kencho and a tough girl named Shizuka, who join him on his adventures.
6. They go to an aquarium that is a refugee center led by Akira's boss Kozuki, who exploits the survivors and treats them like slaves.
7. Akira quits his job and saves the survivors from a zombie shark that grows legs.
8. Akira, Kencho and Shizuka decide to travel the country as a team and pursue their dreams.