A Doomsday Survival Game, Start with a Fiancé

[The male protagonist is a full-level boss + he talks a lot + the female protagonist grows up + double C + system + space + unlimited streaming of doomsday survival games] After a test, Yun Xiyue was pulled into a doomsday survival game, and a fiancé was given to her at the beginning. There were zombies outside, and the two of them were trapped in a room. Yun Xiyue got straight to the point, "How can we sleep?" "How do you want to sleep?" Ye Sichen's peach blossom eyes were full of smiles. "You sleep on the floor or I sleep on the floor." "How could I let my fiancée sleep on the floor?" She looked at the only quilt and fell into deep thought again. The environment was not good, and another cold might kill someone. "How about we sleep together?" She said this with a bit of heat on her face. "Okay." The man agreed quickly, as if you couldn't regret it once you said it. Ye Sichen does three things every day: eat, sleep, and tease Ayue.