The stories are different, but they give out the same vibe. They're both light-hearted and in both you have a delusional ''dorama in the dorama.'' The main character in both is also kind of the ''narrator'' of the stories, and doesn't get involved in the action personally, but acts as a catalyst for the plot.
As far as over the top comedy and characters go, these two dorama are similar in taste. The stories are different, but they're both very funny.
Nishiuchi Mariya stars in both dorama as [one of] the main lead[s]. Both shows have over the top comedy and quirky characters.
Both have the same sense of humour and over the top characters, so if you liked one, I'm pretty sure you'll also like the other.
Both have a girl who disguises herself as a boy; in both you can find various ikemen; and both are incredibly hilarious while also having a romantic storyline. You'll also probably end up getting SLS (second lead syndrome) both times, so beware.