This is a possible summary:
The video is about Master MOON, a professional chef who invites TAEIL, JUNGWOO, and JOHNNY to his summer home and teaches them how to cook traditional Korean dishes. They make yeolmu bibim guksu (spicy noodles with young radish kimchi) and dongchimi guksu (cold noodles with water kimchi) for lunch, and hwache (fruit punch) for dessert. The video shows their funny interactions, mistakes, and reactions as they cook and eat together. The video also includes some references to their song "Hot Sauce" and their fans NCTzen.
Here are the extracted key facts:
1. Master MOON is a chef who has a summer home where he invited some guests.
2. Master MOON has about 10 houses, and the summer home is the biggest one.
3. He customized his hanbok to make it look trendy.
4. Master MOON believes that summer is a season for eating healthy food.
5. He prepared a full-course meal for lunch and dinner.
6. The first dish he made was yeolmu bibim guksu and dongchimi guksu.
7. Master MOON used to live in the US.
8. He has his own cooking philosophy, which is "My Cooking is a Life Style."
9. Master MOON made another dish called mulguksu, which includes dongchimi, cucumber, and a boiled egg.
10. For dessert, he made Hwache (fruit punch).
11. Master MOON bought a watermelon for his guests.
12. The program was made with NCTzen's love.