Sentou Yousei Shoujo Tasukete! Mave-chan

Both will satisfy anyone's taste for meta-jokes. The power of otaku's love of anime can do incredible things, and for those who actually have a unironic love of anime may find common ground with these characters (and the creators).  

Both series feature a luckless boy who was minding his own business when he's suddenly transported to another world with no apparent way back. Another similarity is that the main female protagonist doesn't like the main male character in the beginning and tries to hurt him a lot.