(No heroine + no system + no brain)
The world-devouring serpent - Apophis, when defeated, placed the most evil curse on the world. All creatures in this world will be assimilated by it, turning into beings that bring darkness and chaos to the world, and inherit its title, Apophis.
Gilgamesh was the one who fought with the heroes to defeat Apophis three hundred years ago, but in the end he was cursed by Apophis and became the cursed hero Apophis. It is also the only team with two heroes. The curse he suffered was eternal life and would bring disaster to people with whom he had a good relationship. The better the relationship, the deeper the disaster. In the end, Gilgamesh couldn't bear the heavy burden on his heart, left a letter of fake death and left the team of heroes.
Three hundred years have passed, and by exploring the former homes of the Heroes and Apophis, I learned their skills and got to know Yujiro. Gilgamesh understands the mission and responsibility he carries.
The time has come, you have been chosen by destiny, and the gears of destiny have begun to turn. Oh, what? Don't be ridiculous, there are no dolls talking here, but there really is a conspiracy behind this.
A new work by a newcomer may be very cliché, but I hope Haihan will do it.
(P. S This introduction is only valid for the old world.)