I'm guessing that this was quietly cancelled. It looks like it was meant as a vehicle to promote T-Pop band NKO. At least 5 of the 8 cast listed here are no longer members of the band, including one of the leads in the series. NKO has a new 6 member lineup as of 2022 but I doubt they'll recast with the new members. To me this project has effectively been scrapped even though I can't find any official announcement.
This series is surprisingly enjoyable. Good acting. Nice story. The pacing is good. The main couple is fun to watch but I'm curious about the side characters and their storiess. We are almost halfway through the series and there isn't much development there. I hope they don't rush that.
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https://tpop.fandom.com/wiki/NKO