Behind the scenes with LIGHTSUM, jacket shooting behinds, MV behinds and bloopers!
Lightsum: Sumday
Aired on: May 26, 2021
Total Episodes: 15
Duration: 10 min.
Year: 2021
Country: South Korea
Native Title: 라잇썸: 썸데이
Content Rating: 13+ – Teens 13 or older
Alternative Titles: Lightsum Sumday, 라잇썸 썸데이
Genre: Friendship, Music
