Responses

To be fair, Hari DOES NOT look like his dead sister. (This is confirmed in the novel.) Hari and Arina only share the same hair color. They looked SIMILAR when Hari was young because Arina was sickly and Hari was malnourished, but once Hari grew healthier, that resemblance faded.
Which isn't to say that you can't dislike the story on behalf of the incestuous vibes. You do you.
i like this manhwa at first but after knowing eugene, the eldest brother is the ML i was like "nah this don't sit right with me". i mean even if they are not blood related they still grew up as siblings, especially after that episode when eugene said "you are our sister hari" and the fact that hari actually looks like their real sister is just.. weird (for me) *sigh* i like johan better..