author of KS posted on twitter saying they’re looking into it with lezhin for plagiarism

About wht ?

most likely character design, I assume they’re going to look at the overall plot too but she all she said was:
-
Recently, many inquiries have been received regarding plagiarism.
So I know about this situation.
We are also talking with Lezhin about the related content.
I'm also watching the situation...

Oh is that so but there are also many stories with same art style like potn one same as pearl boy hope this story just peacefully work out .