One Who Would Close the Door is the 324th chapter of Hiro Mashima's Fairy Tail. The Rogue of the future explains that the Eclipse Gate can be used to travel through time as well as defeat the 10,000 approaching Dragons. Happy that Rogue appears to be on their side, the rescue team is then shocked when Rogue suddenly attacks Lucy, stating that he came back to kill her for getting in the way of the Dragons' destruction.