
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
My baby be collecting force control of people like pokemon. Now new potential teacher lady Gestella also got interested in the baby now.
I think she’s more interested in Kayden I think she’s seeing a side of him she didn’t know about - at least that’s what I take from the last panel