valid. I get that it may feel awkward, but its just to make the conflict of the story since clearly from the moment they met they felt attracted to eo and couldnt see each other as step brothers... like they fully grown 16 yo who just were strangers up until that point, not like how most siblings are and its hard to establish any sibling bond in their situation
plus, cant forget how they havent been step brothers for like 10 years now >< and have spent long gaps without seeing eo so they can start their r/s now with a clean slate without their past hanging over them and their parents finally accepting them. just my opinion tho!
I love the story but I just don't like the step brother thing maybe if they weren't step brothers I would've like them more it just makes it awkward but it still has an amazing plot. I love how they started from hating to loving each other. I also wanna see what taku has been up to I wanna see how much he has changed.