[Pseudo-Crossover] This World Never Existed from the Start

[Abandoned pit!!! Do not enter!!!] The genius young scientist Liu Zebai has been feeling rather gloomy lately. She'd called her fiance over to help out, claiming she was short-staffed, but really to keep him close. Then a cool, mature woman was sent to her research institute. From then on, Liu Ze spent her days watching the woman flirt with her fiance in all kinds of ways on the surveillance cameras. Liu Zebai: "…(╯‵□′)╯︵┻━┻" She knows her fiance is a bit of a natural, but it's still so annoying! Then he gives her a smiling head pat. "All right, Bai. Let's go shopping together after work." "...J-just so we're clear," Liu Zebai says, her ears bright red, "that doesn't mean I've forgiven you." The cool, mature female Reaper: "…" #Someone is showing off their love right in front of her every day# #The emotional damage points grow geometrically as their relationship progresses# #She wants to break out!# Theme: