Girls Bravo, Vol. 2
All his life Yukinari has been bullied and abused by girls so he naturally develops gynophobia-- a fear of women.  In fact, just being around girls makes him break out in hives!  Then, he mysteriously gets transported to a world without men and meets a beautiful girl named Miharu who inexplicably doesn't affect him! He tries to resume a normal life, but then more girls from the other planet find a way to follow them...