A young college student was helping his brother-in-law with the preparations for his sister and his marriage ceremony when a bank was robbed. Those two tried to run away from it, but bullets were fired, and the chaos spread... one driver nearby was hit by the stray shots, and thanks to that, his brother-in-law was almost run over, but the college student saved him at the cost of his life.

The college student cursed his luck... he died after being hit by a taxi instead of truck-kun. Still, much to his surprise, Andrew met a suspicious but beautiful woman who said that would grant him another chance in another world. She didn't claim to be a goddess, even though she had that much power, and even granted Andrew the power to summon everything he kills... that seemed too good to be true, but Andrew didn't have a choice in the matter, and then a chance to live again with his memories weren't half bad. Now, reborn as Gaius Aeolus, he has to help the woman discover some mysteries of that world...

Gaius tried to be friendly with her since she didn't seem a bad person, but more and more, he began to realize that there was something suspicious with her and that world... Gaius became certain of that when he noticed that his powers would grow exponentially the more he killed indiscriminately... as if that wasn't enough, he eventually found traces of a civilization in that world that closely resembled Earth... Gaius soon realized that his second life wouldn't be as simple as he had hoped for.