Fairy Tail: The Holy Angel

In an experiment, Kane awakens memories of his previous life, which makes him realize that he has been reborn into the world of Fairy Tail. His top priority is how to escape the Magic Development Bureau and avoid waking up one day on an experiment table, never to awaken again. Later, in another chance encounter, he meets the young Ultear, and the two begin plotting how to escape the Magic Development Bureau. But fate loves to joke—how will the two handle being discovered by Brain? After joining Fairy Tail, Kane witnesses the splendor of this magical world, and while increasing his strength, he begins various research. Dragons are the most powerful creatures in this world. Only dragons can deal with dragons—so what about gods? Is it really true that only dragons can deal with dragons? Are other magics truly ineffective against dragons? So he develops a railgun for Laxus, hoping to see whether a railgun can shatter a dragon's armor. Must Dragon Lacrima only be implanted in the body? What if it is used to make weapons? Can it be effective against dragons? Can Takeover Magic only take over demons? What if one takes in a dragon's soul? Can it harm dragons? If Dragon Force is gathered and fired from a cannon barrel, can it harm the Black Dragon?