In case anybody is interested, the author is asked about the most controversial part of the series
https://animecorner.me/interview-mas...lusion-gender/
Q: With Robin, you have probably created one of the most hated characters in the history of manga and anime. Do you agree with that? How did you come up with the character Robin?
A: I didn’t expect Robin to be hated as much as he becomes, but all I can say is that he was born in the story out of sheer necessity. He’s a very important character.
In case anybody is interested, there is a manga thread here
https://forums.animesuki.com/showthr...venly+delusion