Activate the Scumbag System at the Age of 80

Tilt the sky and the ground and stir the air The love saint of the previous generation! Reborn in a nursing home, in order to become younger, he became an "elderly killer" within a month! After the system task is completed, the host can change the age at will. "I'm sorry, the color of your fingernails is different from mine. Let's break up~" "Why on earth did you break up with me!" "Emmm, because you can breathe??" ... "Little sister, come out and be happy!" Favorability -50 Wrong words? It's okay, I have a time rewinder Not strong enough? Feel free to make it bigger or smaller to help! Funny This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.