On the verge of death, Kevin or what the people called 'The Savior' was chosen by the gods to be the hero, to be the one who would kill the demon lord and save humanity.
Just like any other wannabe hero Kevin also accepted the 'blessings' and started his path to be the hero.

He faced numerous obstacles but endured everything while worshipping the so-called Gods.
At last he and his friends succeeded in their mission and were able to kill the demon lord. As expected from any hero's story but what Kevin didn't expect was the selfishness of the so-called gods.

Just as kevin killed the demon lord, the god who gave him the mission and provided blessings to Kevin and his team appeared on the battlefield.

"HAHAHA
YOU HAVE DONE WELL, HERO.
NOW THAT THE WORLD IS AT PEACE, IT'S TIME TO TAKE BACK OUR BLESSINGS.
IT'S TIME FOR YOU BRAVE WARRIORS TO REST."

Just as the god appeared, kevin instinctively wanted to get on his knees and start worshipping, but when he felt all the holy power in his body dissappear, he looked toward the divine being in confusion.
But seeing the mocking smile on its face Kevin fell silent. Feeling something bad was about to happen he turned to look at his friends but as he saw their bodies turning into nothingness with disbelief in their eyes, his heart started beating faster and faster until the only thing he could hear was his furiously beating heart.

Kevin felt an unimaginable amount of pain in his heart as he saw his friends, whom he had sworn to protect, die in front of his eyes.
It took him a few moments to arrive at the only possible conclusion, and all his faith and pain turned into hatred as he looked the divine entity.
" I WILL KILL YOU, AND ALL THE OTHER GODS!!!" kevin roared in anger as tears flowed out his eyes.
He now knew that these selfish gods have used him and his friends to get what they wanted and were now throwing them aside.