By the way, did i missed out any part explaining why or how LSQ entered the loop in the first place?
I read a theory elsewhere (in a comment at the The Fangirl Verdict) that although it's not explicitly explained, episode 3 provides a point of reference for this. Lemme quote that person in the post below:
I've only watched episode 1 but I can definitely see CFY's improvement in acting. I first saw him in My People, My Country with Liu Haoran. And then in Ever Night. He has really improved :)
Chen Kun and Leo Wu too!