A possible concise summary is:
Eunchae, a K-pop idol and the host of Eunchae's Star Diary, invites Soobin and Hueningkai from TXT as her guests. She introduces them to Casetify, a phone case brand that she likes and customizes cases for them. She also chats with them about their latest album, their experiences as MCs of Music Bank, their hobbies and interests, and their friendship as the 'gums'. They answer questions from fans and share stories from their tours. Eunchae ends the episode by wishing them good luck and thanking them for coming.
Here are the key facts extracted from the text:
1. Eunchae is the host of a show called "Eunchae's Star Diary".
2. Eunchae invited TXT, a group from her agency, to appear on her show.
3. TXT is a senior group to Eunchae, and she was nervous about meeting them.
4. Eunchae gave TXT customized phone cases from CASETiFY as a gift.
5. CASETiFY is a brand that offers customizable phone cases.
6. Eunchae is a fan of CASETiFY and uses their products.
7. TXT's Soobin was a former MC of Music Bank.
8. Soobin interviewed Jessi on Music Bank, and she did not follow the script.
9. Hueningkai, a member of TXT, was a special MC on Music Bank.
10. Hueningkai and Soobin are close friends and are known as the "gums" within their team.
11. Hueningkai is the youngest member of TXT.
12. Soobin is the leader of TXT.
13. TXT's third full-length album was released.
14. The album has 10 songs, and Soobin and Hueningkai's favorite song is "Mul-Sujebi (Skipping Stones)".
15. Hueningkai likes anime and introduced Soobin to it.
16. Soobin and Hueningkai enjoy playing video games together.
17. The hardest part of going on tour for TXT is the jet lag.
18. Soobin and Hueningkai have a hard time adapting to the time difference when traveling.
19. TXT's tour is ongoing, and they have to travel frequently.
20. Eunchae's Star Diary is a popular show, and TXT enjoyed appearing on it.