
Is there a romance ? Is it a good writing romance if there is? Is there a haram in this ?

No romance at all. The only thing that comes close to a harem is the amount of slimes willing to get tamed by Yuji rofl
It's just a good isekai story without any romance.There is an anime (even english dub too). The events are slightly different there tho. Probably to give a bit of a more conclusive end within 12 episodes.

You need to find the one that the artist know how to write romance as a sub-genre. Not every single one of female character and romance is bad.
If they know to write a not annoying fl , not haram shit. If they know how to write a calm , mature , intelligent, supportive FL. unfortunately , korean and their hate for woman run so deep. a lot of fl is shit.

True, even if this girl became MC's love interest in the future, even with just this chapter which was not romantic, Author-san already gave the audience many info about her, she's known KangHyun for a long time, as his word, she's shameless (lol), loves music and arts, mulit-talented, singer, actress, she's also the host of the cooking show KangHyun participated, she's also sassy because she's been sarcastic on the a-hole guy who's causing KangHyun problem. I'm not rooting for a romance between them but i gotta say I will not be against it either, I enjoy her character, and she's more interested on the pianist and painter lmao
The fuxk what do mean the end!!???