The End of the World Through Books: the System Calls Me to Cultivate Immortality in the Style of Social Death

[Book-traveling + apocalypse + fantasy + strong female + funny + chatty system + demon king male protagonist] Su Mengtang transformed into a vicious female supporting character in a post-apocalyptic novel, and died miserably. Fortunately, it is bound to a system - but the task is a bit embarrassing. "Task: Sing "Pray to Buddha" to the big guy who is passing by!" "Mission: Dance a ballet for the Zombie King!" Su Mengtang: "... Do we have to live in this apocalypse?" While complaining, she never returned on the road to social death, hoarding supplies, strengthening her abilities, and attracting countless weird teammates. Until one day, she discovered that the cold man with unparalleled good looks who always appeared when she was about to die was looking at her more and more wrongly. Linmo: "This woman behaves strangely and speaks strangely. She must be a... Rare species that I have never seen before." (The Demon King's Confusion) He wanted to observe quietly, but he unknowingly became her exclusive bodyguard, material provider, and audience for her complaints. [The irritable bitch complains about the heroine x the ancient and powerful natural idiot king] This is a relaxing story about working hard (laughing) in the apocalypse and picking up a big boss~