I was hooked by the first half of this drama, and I loved the way appearances and bullying were explored through the eyes of both Ayumi and Zenko, plus Kaga was a total sweetheart who had me rooting for him the whole time.

But at some point, after episode 3 or so, it became more about the "science" of switching bodies and enacting a plan that would get them back to themselves. This pulled my focus away from the themes of the story and the character dynamics, especially when they reinserted Kohiro into the love triangle and tried to make his earlier actions more romantic.

So in the end, I would rate this story much higher in theory than in execution. I think that if you're invested in the romance you'll be disappointed, but at least you'll come away with some strong friendships and memorable characters.