A Plain Fantasy Journal

Transformation story + cross-dressing + System + one female lead

After transmigrating to another world, the protagonist awakens the ability to transform based on fantasies, along with a System. Later, he also obtains a form of inheritance passed down since ancient times and the ability to transform into magical girls from other worlds.

As he gradually becomes familiar with and explores this world, the protagonist discovers that things here may not be as simple as they seem...