It could be a fun and unique plot twist. Maybe the guy has to adapt to a whole new life and deal with the changes in how people perceive him/her.
One possible plot could be that the girl is secretly a witch. When the guy is helping her move, he accidentally breaks an old family heirloom of hers which has some sort of magic in it. As a result of this, she casts a spell on him in anger which turns him into a baby. Then the story could revolve around how he tries to communicate to her as a baby to reverse the spell, and she has to take care of him in the meantime, leading to some comical and also heart - warming moments as she realizes she may have overreacted.
She might be shocked at first. After all, seeing someone suddenly turn into a baby right in front of you is not an everyday occurrence. Then she could feel guilty, thinking it was her fault in some way, especially if it happened because of something related to her move. She'd probably start trying to figure out how to turn him back to normal.
It could lead to all sorts of hilarious and confusing situations. Maybe the guy has to adapt to a completely new way of life and deal with unexpected challenges.
It usually leads to a lot of interesting and sometimes confusing situations for the character. They have to adjust to a completely new identity and the reactions of those around them.
His personality. Maybe he is really funny and makes her laugh all the time.
It could be a complex narrative. The ghost girl and the possessed guy might be on a quest to solve a supernatural mystery or to break a curse that binds them together.
It might turn into a romantic moment or a complete disaster. Maybe they discover something new about each other or it causes a big misunderstanding. The possibilities are endless, depending on how the author decides to spin the story.
Another example could be some fan - made stories in the anime community. For instance, there might be stories where a male character gets magically transformed into a female through some kind of spell or strange occurrence. These often explore different aspects of how the character copes with the new identity, like dealing with new social interactions and self - perception.
It could potentially be a story with a scientific or technological twist. Maybe the clothes are part of an experiment gone wrong or a futuristic device that causes the transformation. It could also be a story with a deeper message about acceptance and self-discovery.
Yes, it is quite common. In many works, this plot is used to break stereotypes. It shows that appearance isn't everything and that a person's charm, kindness, and other qualities can win someone's heart. For example, in some romantic comedies, the 'fat guy' might have a great sense of humor or be extremely caring, which attracts the girl in the end.