Sword fairy's sao x fairy tail story

OK this might be confusing because crossover books aren't popular but you know me I like doing unpopular book ideas but anyways here's the actual description. One day in fairy tail a very strange messenger with two sets of headgear shows up at fairy tail's doorstep looking for volunteers to test their new game Natsu jumps on the opportunity and Lucy goes with him to make sure he's safe in there. Little did they know that messenger gave them sao the game which trapped thousands and now Natsu and Lucy are now trapped inside with thousands of other's what will happen when they meet the character's of sao and what will happen to the rest of the guild? Read to find out.(Also I don't own fairy tail nor sword art all of the character's are owned by hiro mashima and reki kawahara.)