Some authors have different pen names for different genres of releases, like how Yana Toboso (kuroshitsuji) released yaoi under the name of Rock Yanao.
Pen-names are not only for that but for releasing works without showing who you are (like JK Rowling with her penname Robert Galbraith)
It's messy because because when someone only uses a penname people will thy to find out who they are (like how some people had these conspiracy theories that Sui Ishida could be Yoshihiro Togashi using a pen name.) but it is some times the choice of the writer or what they need to do to be published (some Shounen magazine won't take yaoi writers the same way some studios won't let signed seyuus of popular Shonen dub yaoi nor anything sexual)
Is it usual in mangago that alternate name of an author(for different genre&/manga) is not stated? (I'm new here btw. :3)
Cuz this author is the same author as BL mangaka with different name called Yukue Moegi.
Since her works is not stated, here, her other works if anyone wanna know :3 https://www.mangaupdates.com/authors.html?id=9405