In the Last Days, I Took My Sisters to Play Mahjong in a Cave

(Apocalypse➕Sister Group Survival➕CP➕Male protagonist Special Forces) Tongtong was reborn three days before the end of the world. In his previous life, Xu Zhixia and his three roommates in the dormitory depended on each other for a week, and finally died at the mouth of an evolved zombie. When he is reborn in this life, he will inevitably take his sisters to survive the end of the world. But what's going on with this eagle-like man? Why do you keep hanging around her and feeding her? She is almost turned into a little waste by being fed, lazy, squeamish, and brainless. (With CP)