North America is in danger, but first, let them be trapped! The group of excellent researchers fights fiercely in their quest, to meet the GEA Corporation! Group of Excellent Agents (GEA Corporation) is under HOME OF EXCELLENT AGENT where those chosen eloquent researchers, broadcasters, writers, and reporters are present in that Corporation. Mikasa Claymore desperately fulfills her ambition to become the best in the field of research and journalism. Even though her parents are against that, she pursues her dreams and he leaves her parents for that reason. That's why she did her best to become the best agent in GEA Corporation. There's a report that some ships were discovered completely abandoned for no apparent reason; others transmitted no distress signals and were never seen or heard from again. Aircraft have been reported and then vanished, and rescue missions are said to have vanished when flying in the area of that sea. Since they are excellent agents, they will be assigned to this task. Together the GEA Corp will unravel supernatural mysteries that haunt the ships cross in that sea areas. And soon they will discover an impending danger. Will they find out what it was? Let's be with the journey of Mikasa Claymore together with the GEA Team!