Here's a theory of why Aunt abandoned uke. Taken from a comment the author's Weibo Page which is (Approved by the author) (Sorry for the bad English)
The Aunt and his Seme are both Devils judging from the eyes type. Uke's Father(or Dad) is probably an angel. The aunt once said his brother is in hell, moreover angel and devil are enemy to each other. So uke's Father and Dad are both being separated and Father(or Dad) is being imprisoned, that's why uke was brought by the aunt but also abandoned by aunt because aunt's Seme is probably the Ruler. He abandoned Uke because he couldn't protect him if he's with his aunt and the Seme around, lastly the aunt chose to stay by his Seme side so that he won't threaten Uke's life.
The Aunt disguised as a woman was to not let people recognized him and the uke when they were out.
Here's a theory of why Aunt abandoned uke.
Taken from a comment the author's Weibo Page which is (Approved by the author)
(Sorry for the bad English)
The Aunt and his Seme are both Devils judging from the eyes type. Uke's Father(or Dad) is probably an angel. The aunt once said his brother is in hell, moreover angel and devil are enemy to each other. So uke's Father and Dad are both being separated and Father(or Dad) is being imprisoned, that's why uke was brought by the aunt but also abandoned by aunt because aunt's Seme is probably the Ruler. He abandoned Uke because he couldn't protect him if he's with his aunt and the Seme around, lastly the aunt chose to stay by his Seme side so that he won't threaten Uke's life.
The Aunt disguised as a woman was to not let people recognized him and the uke when they were out.
Thanks y'all