Responses
As far as i read i do not see incest.
These kids raised each other without parents, there are very dependent on each other, which is probably very confusing as their situation is not common.
they are not sexual at least so far.
Incest is not a natural thing you know? I mean we are biologically programmed against it, it would not make much sense.

First of all, I love this mangaka and this manga is beautiful, yes, in real life incest is very controversial, but this manga is not real so I can enjoy it, and the story is so melancholic and the drawings are so good and it makes me feel something knowing the hardship they are going through because of their relationship even though they are good people.