None of these Witches are Serious

Ron accidentally travels to another world, but before he can even enjoy the thrill of his journey, he's framed and guillotined. On his deathbed, the system sends a cheat to avert the crisis. He also picks up a super cute and clingy witch along the way. A beautiful duchess from the empire suddenly appears, offering her territory, and a tsundere dragon maid takes care of her. Guided by the system, Ron is about to embark on a joyful journey into another world. But no one ever tells him that the same system has killed all ninety-nine other travelers before him! Whose conspiracy is all this?