I don't have an exact manga in mind for that. But you might find it in some mangas that focus on magic and transformation themes. Try looking through popular ones in that genre.
I really don't know of a manga where Loki does that. But you could search online manga forums or communities. Maybe other manga enthusiasts can help you find it.
I'm not sure about such a specific manga. Maybe you could check some fantasy or mythological-themed mangas.
The fairy might use some magical spell or potion to transform the boy. It could be a sudden and unexpected event.
In a far - away land, a boy named Leo always dreamed of being a girl. One day, he made a wish upon a star. To his surprise, the star granted his wish in a very strange way. His clothes transformed into a beautiful dress, his short hair grew into long flowing locks, and his boyish hands became slender like a girl's. Leo was now Lea. Lea was excited but also a bit scared as she started this new chapter of her life as a girl.
No, it's not ethical. A child's gender identity is a very personal and complex matter. Parents should respect the child's natural self - development rather than forcing a gender change. It can cause serious psychological harm to the child, as they may grow up confused and struggle with their true identity.
Often, in such manga, the transformation can be triggered by a wish, an encounter with a mythical creature, or a scientific experiment gone wrong. The change might also be gradual or sudden, depending on the story's plot.
Often in cartoons, a boy turns into a girl due to a wish gone wrong, a curse, or as part of a crazy adventure. Sometimes it's for comedic effect or to teach a lesson about understanding the opposite gender.
It could happen through magic or a special transformation device. Sometimes it's part of a fantasy plot.
It could be through a magical transformation or a scientific experiment gone wrong. Maybe there's a wish granted that causes the change.
Often, in cartoons, a boy turns into a girl due to a scientific experiment gone wrong, or it could be a wish granted by a magical creature with unexpected results.
In cartoons, a boy can turn into a girl by wearing a special costume or mask that has transforming powers. Another way could be when a fairy or a genie grants the transformation as a reward or punishment.
Often, in cartoons, a boy turns into a girl due to a curse, a wish gone wrong, or some sort of scientific experiment gone haywire. Sometimes it's just for comedic effect or to teach a valuable lesson.