Is this a bit of a stretch?
Well it has the fantasy tag lol. Well it has an interesting premise, and a surprising mystery aspect to it.
Well I like it, and though our MC is pretty nonchalant, I don't think it makes him boring or unlikable. Give it a shot I guess? It might be hard to grasp for someone who doesn't had prior idol knowledge though www.
Romance: he has to debut or he will dieeee, no time for that dammit
Ah, no fantasy/Isekai list would be complete without a "villainess" MC in it.
I really like it, our MC is of course very OP (she was the last boss after all). But the person who came to possess her body is honestly just wholesome; huge savior complex and everything www.
The characters are great and have (somewhat) good character motivations. It's just us following our MC on her journey to becoming a great queen.
Romance: none (but has the vibes of a pseudo reverse-harem)
One Hit Teacher, Master Baek