The concept is nice one . A beautiful story could have been crafted had the produver/ director gave more importance to the QUALITY of the story. Instead the plot was made a total mess
1. The background stories of both jihoon and eden were the key to the entire series , but they were shown very superficially and incompletely( which fails to properly support the current plot.)
2.I somehow felt the story was rushed ( maybe they aquired broadcasting rights for just 8 episodes with 15min each). They could have removed some unecessary areas in the story and used that time to explain the basic areas of the plot.
I have a few unsatisfactory / questionable areas in the story :
- Gay business concept in kpop : does such a thing exist in kpop ? I knew BL shipping exists for dramas . Does that apply for kpop too??

- Jay was not shown as a boy when he was small child instead he was clearly shown a real girl why ? To make eden mistaken him for girl ? They could have shown him as a boy with long hair with a qirl outfit .
It felt it was not fair representing a boy character with a real girl. Its misleading and decieving the audience.

- jay says to hyunbin that he recognized eden instantly upon seeing his face during the interview. I felt it was irrationale

-What exactly is the relationship between hyunbin , female singer , and jihoon ??

-why did hyunbin with female singer's help made up a fake scandal with jihoom while he was drunk which ruined his career in the initial phase??

-the misunderstandings i felt was of the childish level especially in last episode

- it was told that eden came from USA and is fluent in english. But in reality he struggles in speaking english.
- Jay who was brought up in USA struggles in speaking fluent english especially in childhood

* Final verdict : this series is messed up by poor story and poor direction skills. Its not worth rewatching.