The Tsundere System Bound at the Beginning Actually Became the Tongtiandai!

[Tsundere System] + [Intimate Sister] + [Contrast Girl] + [Loli Empress]... [Details! Cool! ! In the era of the Big Explosion of Science and Technology, human beings have already mastered technology and achieved interstellar aviation. However, on an ordinary planet, the protagonist, who is wondering whether to go into a factory or go home to farm, does not know what is waiting for him. Until one day, a thunderbolt fell on his head. "The discount store system has been activated, come and buy!" A lively and smart voice sounded in his mind, and the gears of fate began to turn...