I’m guessing she didn’t become famous until he started doing it. Wouldn’t be surprised if he started helping her in a smaller way at the beginning when he was really young, and then grew more detailed as he got older.
Seems like she doesn’t know how to express herself properly, maybe doesn’t even know how to express emotions in general. My guess is that he understood her hidden expressions because he knows her so well, and wrote her script to compensate.
But now, she’s basically just a robot with no ability...
I felt so bad for the guy in chapter 5. Poor guy is just trying to do good.
For anyone else, until English is posted, any simple Spanish to English translator app will do just fine.