Here is a possible concise summary:
A man named Jang Sung-kyu works part-time at a shaved ice shop called Sulbing. He learns how to make various kinds of shaved ice, such as injeolmi, melon and yogurt. He also interacts with the owner, the other employees and the customers. He enjoys making shaved ice, but he struggles with the orders and the cleaning. He also jokes around with the customers and asks them about their lives. He gets paid 52,320 won for six hours of work. He ends the video with an acrostic poem using the word Bingsu.
Here are the key facts from the text, excluding opinions:
1. The summer solstice is the day with the longest day and shortest night of the year.
2. Jang Sung-kyu is working part-time at Sulbing, a shaved ice shop.
3. Sung-kyu arrived at Sulbing at 9:20 am.
4. The owner of Sulbing, Kim Kwang-hyun, is 30 years old.
5. The owner invested a little in the business, and the CEO invested a lot.
6. Sulbing recently launched croffle.
7. The owner's favorite summer dessert besides shaved ice is croffle.
8. The owner thinks that Sulbing's croffle is the same as other places.
9. Sung-kyu is tasked with preparing melons for the day.
10. The melons will be sold out by around 8 or 9 pm.
11. Sung-kyu is shown how to make Injeolmi shaved ice.
12. The ingredients for Injeolmi shaved ice include milk ice, condensed milk, and injeolmi powder.
13. Sung-kyu is tasked with making a Yogurt Tongtong melon Sulbing.
14. Sung-kyu takes a break to eat lunch.
15. The lunch menu includes radish Kimchi cold noodles and pork stew.
16. Sung-kyu returns to work and takes orders from customers.
17. A group of four men come in and order mango Bingsu.
18. The owner mentions that the best welfare for employees is having a group dinner.
19. Long-term workers at Sulbing receive bonuses.
20. Sung-kyu earns 8,720 won per hour and works for 6 hours, earning a total of 52,320 won.
21. Sung-kyu thinks that making Bingsu was fun and compares it to playing a game.
22. The owner mentions that the best time to work at Sulbing is in the autumn, winter, and spring when there are fewer customers.