At the end of Episode 8 of Season 6, which aired on June 27, 2019, Luda PD went to the waiting room of active members and notified that Luda 7 Mission Hell 2 would start. Afterwards, the members reacted violently by covering the camera with a blanket and escaping from the waiting room. Season 7 was previewed with the subtitle that it will come back more intensely, leaving the words, "It's Luvous 7 Coming Soon".
On April 14, 2020, it was announced that Lovelyz Diary 7 would be broadcast in May in a live broadcast on TikTok. It was also announced that the behind-the-scenes of Lub Da 7 will be released on TikTok.
On May 23rd, Lovelyz Diary supplementary Teaser video and images were uploaded. This season is 'Bonus Book', and from Tuesday, May 26th to Friday, June 19th, the main story was uploaded to Lovelyz V LIVE and YouTube channel every Tuesday and Friday, and the Behind Clip was uploaded to TikTok every Saturday.
