There's No Friendship Between the Grand Duke and the Marquis is a Manga/Manhwa/Manhua in (English/Raw) language, ROMANCE series, english chapters have been translated and you can read them here. You are reading There's No Friendship Between the Grand Duke and the Marquis chapters on ManhwaZ, fastest updating comic site. The Summary is
One peaceful day, her first ordeal comes before her. Instead of the other twin Ordo , who was sick, she must attend the meeting with the a prince of her age. “I don’t want to go! Why do I have to pretend to be Ordo?” “Hey, Ovette. I’ll buy you the telescope you said you wanted to have last time.” “Mom, I will become Ordo more perfectly than anyone else.” Ovette entered the imperial palace with everything ready. And there, she gets involved with a strange person who is not even the prince. I'm not going to see you again anyway, so I applied the medicine properly... “You are the only son of Archduke Rehovem, how did you become friends with someone like that again?” I beg your pardon… … ? For some reason, I have a feeling that I'm going to be terribly entangled with Rehovem. “I wish you all the best in the future, the future of Alphonse.” No, wait! Where is the friendship between the Archduke and the Marquis?