>>93156046It looks like the music production for the show is by Music Ray'n, a label under Sony Music Entertainment. The song is a collab between Lamy and Aglio Olio e Peperoncino, who's from Sony's Project Vee vtuber group - but she's small fry compared to Lamy like everyone in Vee, even though they openly promoted that she was one of the "Four Heavenly Kings" (former Mirai Akari)
So I would guess Sony brought Lamy in with the hope of boosting her as well.