A possible concise summary is:
Six members of Fischer's, a Japanese comedy group, do work experience at Hakkeijima Sea Paradise, an aquarium. They split into three teams: fish, marine animals, and dolphin show. They learn about the ecology and care of various aquatic creatures, such as sharks, walruses, polar bears, sea turtles, and dolphins. They also help with tasks such as preparing food, cleaning tanks, and feeding the animals. One of them, Silk, trains for two hours to perform a dolphin show with a beluga whale. He impresses his teammates and the audience with his skills and connection with the beluga. They all enjoy the experience and thank the staff and viewers.
Here are the key facts extracted from the text:
- The text is a transcript of a video where six people do work experience at an aquarium.
- The six people are Fischer's, a Japanese comedy group, and they are divided into three groups: fish, marine animals, and dolphin show.
- The fish group prepares squid and mackerel for the fish food, transports sharks to the aquarium, and cleans the piranha tank.
- The marine animal group cleans the walrus pen, feeds the walruses, polar bears, and sea turtles, and interacts with a dolphin named Aleka.
- The dolphin show group consists of only one person, Silk, who trains with a beluga named Shiima and performs a show with her.
- Silk impresses everyone with his skills and connection with Shiima, while Ndaho fails to make Aleka jump.
- The video ends with the six people thanking the aquarium staff and promoting their channels.