A possible concise summary is:
The text is a transcript of a YouTube video where Jeeseokjin, a singer and comedian, invites GYM Jong Kook, another singer and TV personality, to his show "Just an Excuse". They chat about various topics, such as YouTube, music, health, fashion, and love. They also joke around with each other and their staff members. At the end, they go to a gym where they meet another guest, Xi Chen, who is also a singer and actor. They tease him about his YouTube channel and his assistant. They also exercise together and have fun.
Here are some possible facts extracted from the text:
1. The text is a transcript of a video from a YouTube channel called GYM Jong Kook.
2. The video features three Korean celebrities: GYM Jong Kook, Jeeseokjin and Liu Zaixi.
3. The video is about their interactions, jokes and experiences while filming YouTube videos for different channels.
4. The video also mentions some topics such as COVID-19, type A influenza, pool party, Pr*da, MOM's new album and gym membership.
5. The video is edited by Kalos, who works in the IT industry and also helps GYM Jong Kook with his channel.
6. The video is sponsored by a coffee shop and a thermos cup brand.