Are You Saying That They All Became Yandere After I Left?

[Yandere] [Epilepsy] [Funny] [Multiple heroines] [Slightly refreshing] Yun Xiaofei was originally a high school student who was about to be admitted to his ideal university, but a sudden medical examination report from the hospital showed that he had cancer and was beyond hope. Yun Xiaofei was unwilling to give in, but suddenly he heard a beautiful mechanical girl tell him "As long as you go to various novel worlds and redeem different heroines, you can gain a healthy body and inexhaustible wealth." Yun Xiaofei agreed without thinking, so the villain played by Yun Xiaofei didn't appear before the destiny hero appeared. After training all the five female protagonists with flawed characters in the five novels into normal people, the mission is completed and they leave. Just after he completed all the tasks with great pains, he returned to his original world. Not even two and a half years after receiving the reward, the system suddenly told him "Dear host, go back quickly! Since you left, the heroines have all gone crazy!"