Summoning the Dragon from Another World

This is a different world where all major races such as orcs, elves, dragons, angels, and vampires exist. The wars between the major races have never stopped, and people all over the world are in ruins. An ordinary young man was accidentally reincarnated into this different world by God, but was told that he only had three years to live. So he embarked on a journey for the purpose of survival. In the process, he led the human race to participate in several racial battles and made great achievements. But the three years are coming to an end, can he survive? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.