No frikin way lol
I also thought of Secretive Plotter when I saw Chatterbox. But just shrugged cause they only look similar with their outfit and such but different beings so yeah... And of course, Hyunjae... a lot of us here in the comments have said that when that guy shows up, the genre just suddenly changes into BL real quick. I genuinely think he's in a wrong genre atp and got rejected by Lezhin cause he was too gay asf.
secretive plotter...ah, it's been a while since i saw? heard? that title..... *sobs*
Chatterbox looking like Secretive Plotter isn't doing me good (￣ε(#￣)Σ
Anyway, there's one and only true pairing here, and that is Hyunjae-Yoojin-Taewon
these three had each other as their type as the author said in an interview
Hyunjae even said canon in the novel that if he were to marry or date anyone, it can only be Han Yoojin or Song Taewon (he's legit gay af XD)