Unfortunately the Skeleton did not survive for long; they died after sacrificing their own life energy and power to allow life to be restored to the world. 4 thousand years later an Elf girl who was helpless as her people were being slaughtered by monsters desperately tried to summon a powerful creature that could save her people. A blinding light appears as the most powerful summon appears after being gone for 4 thousand years. The Elf girl saved her people using the summon. However she found that her summon was unbeatable in terms of one on one fights and was invincible in one on one battles the instant attacks were powerful however the summon was weak when it came to fighting multiple foes naturally this was not a real issue because of how powerful it was and how quick it could attack the issue was that it had to attack one enemy at a time if it attacks multiple this weakens the attack power. The Elf girl was born with a rare ability that could fuse summons together and create greater summons so she fused summons that were made for group combat with the overpowered summon as well as this she found that the summon was flawed its attacks were spread out and would destroy everything in the path as well as the fact that this summon was great in versatility unfortunately its ability was too unbalanced and individually they were great but focussed on compensating each other basically overall ability outweighed quality it could shapeshift but it was extremely slow doing so and to switch forms would take too long for battle. The Elf girl fused summons that would cover these flaws in her summon along with the most powerful summon.