Here is a concise summary of the provided transcript:
**Title:** NCT DREAM's Surprise Visit to Class 2, 2nd Grade of Seoul Visual Media High School (Ep. 5: Love on Christmas)
**Summary:**
* NCT DREAM secretly visits a high school class, disguised as a documentary filming for a "Video Production Class".
* The students are surprised and delighted to meet the group.
* Activities include:
+ Singing "Happy Birthday" to a student (Hyojung)
+ Reading and responding to students' wish cards
+ Encouraging a frequently late student (Yoonseo) to punctuality
+ A heartwarming "Appreciating Teacher's Love" segment
+ Participating in a "Candy Challenge" video production with the students
* The visit aims to boost the students' energy and morale as they approach their senior year.
**Tone:** Heartwarming, uplifting, and entertaining.
Here are the key facts extracted from the text, each with a number and in short sentence form, excluding opinions:
1. The event "NCT DREAM sneaks in during class" takes place at Seoul Visual Media High School.
2. The class involved is 2nd grade, Class 2.
3. The homeroom teacher's name is LEE Yoonhee.
4. The students were told they were participating in a "Video Production Class" filming.
5. NCT DREAM's surprise entrance was planned to boost the students' energy.
6. There is a student, Hyojung, whose birthday coincides with the event.
7. NCT DREAM sings a "Happy Birthday" song for Hyojung.
8. A small gift (a block) was prepared for Hyojung, which she had expressed a desire for.
9. Candy was prepared for everyone in Class 2 of the 2nd grade.
10. Students wrote wish cards without knowing NCT DREAM would read them.
11. A student, Yoon seo, is noted for being tardy, and her favorite NCT DREAM member is Jisung.
12. Lee Yoonseo is directly addressed by Jisung to stop being late.
13. A student, Taewoong, had written a wish related to buying a new PC and equipment.
14. Another student's wish was to become the CEO of a famous brand.
15. A student, identified as the camera director, wishes to become a famous director someday.
16. NCT DREAM releases a winter album and involves the class in a dance challenge.
17. The event includes a segment for appreciating the teacher's love.
18. The teacher is touched by the students' expressions of love and appreciation.
19. The event concludes with messages of encouragement from NCT DREAM members (RJ, Jaemin, JS).
20. A "Candy Challenge" video is produced by Class 2 of the 2nd grade, available on Dingo Story Shorts.