Can angels be featured in this manga?

Well, it's possible. If the manga is set in a fantasy or supernatural world, angels could show up. But it all comes down to the author's imagination and the story they want to tell.

It depends on the author's imagination and the story's concept. Sometimes, angels can be incorporated in creative and unexpected ways in BL manga.

Yes, they can. In the world of manga, anything is possible and creators have a lot of creative freedom.

I'm not sure. It depends on the manga creator's decision and the story's direction.

Sure, Urashiki makes an appearance in the manga. His role and actions are depicted in the comic.

Yes, it is. The Jougan makes appearances in the manga and plays a significant role in the story.

It depends on the author's imagination and the story's concept. Some BL mangas might feature angels, while others might not.

Yes, it is. The story concluded and wrapped up all the major plotlines.

Yes, they are. The Neo Marines do have appearances in the manga.

I think there's a good chance he will. The creators often bring in popular characters from different story arcs.