The Holy Light in Fairy Tail

During an experiment, Kane awakened the memories of his past life, which made him realize that he was reborn in the world of Fairy Tail. The top priority is how to escape from the Magic Development Bureau and avoid sleeping on the test bench one day without waking up. Later, he met the young Urrutia by chance again, and the two began to plan how to escape from the Magic Development Agency. But fate always likes to play tricks. How should the two people deal with it after Brian sees through it? After joining Fairy Tail, Kane saw the splendor of this magical world. While improving his strength, he began various researches. Dragons are the most powerful creatures in the world. Only dragons can deal with dragons. What about gods? Is it true that only dragons can deal with dragons? Do other magics really have no effect on dragons? So he developed a railgun for Laxus, hoping to see if the railgun could break the dragon's armor. Can Dragon Crystal only be implanted into the body? What would happen if it were used to make weapons? Can it be effective on dragons? Can accepting magic only accept demons? What would happen if you accepted the soul of a dragon? Can it cause harm to dragons? If the power of the dragon is gathered together and fired from a cannon barrel, will it cause harm to the black dragon?