The rat is much cuter than the over the top female doctor- even though this is a shounen... Making her sexy is a bit overused
I agree with you, there....On the other hand, I wasn't want to see a flat chested loli or another dwarf version of a Watson imitation. There are only cliches lately, seriously. It would be interesting if the rat become the heroine. But, then, the protagonist would be just sad. For more then a few reasons.
I would then con him as (rat)lady. ⁄(⁄ ⁄>⁄ω⁄<⁄ ⁄)⁄
I can't believe that this rat instigate fandom. (≧∀≦)