Hi, I'm looking for a manga that I read some time ago. One of the stories of this manga is a man who meets a girl at a convention or at a train station. This girl is a fan of the manga that he wrote while he is only the assistant of the true author (a woman). In another story, this same girl sends him lewd pictures to the author of the manga and it is he who opens the mail. His boss (the real author) told him to get rid of the letters of fans received. He goes to her house to tell her to stop and make him understand that he is not the author of the manga but he fucks her in the entrance of her house.