I don't read manga so I wasn't aware of Switch Girl but the premise seemed interesting enough... Story- Really the story is nothing original and has been done many times before. Its a school drama with your average villains trying to mess with the leads throughout but becoming good by the end. However, I found it so funny, cute, and the romance was perfectly done (what I would like to see in more J dramas). My only complaint is that is was really too short. There's only 8 eps and thier barely a half hr long. I want more! Acting/Cast- For the casting, I didnt know much about the lead actors beforehand, but they had awesome chemistry which made me invested in thier romance. I remember the guy that played Arata from Hana Kimi Remake. The impression he gave me right off the bat was he was HOT but not really memorable. In Switch Girl though, I really took notice of him! He was perfect as Arata. I cant wait to see him in more things.The actress who played Nika was soo good as being the switch girl. It was eery how she changed from being the popular school princess to being a nerdy looking slob at home. She convinced me well though. Music- It was fun and silly when needed. Rewatch- I could watch this many times over in a year because its short and really funny. Overall Switch Girl is just a really sweet and fun watch.