In 2021-2022, I stumbled upon some apocalyse theme porn games/stories and kinda spent 2 whole weeks to construct an apocalypse game's concept and story :v
So basically, the main story is that a seedling company created a virus that is engineered to accelerate plant's growth and for some reasons, it got out of the lab and infected the outside flora. Thinking it would not cause much problem and afraid of penalties from the government, they hide that fact from the local offical and tried to contained it themself. However, some infected plants started to mutated into active hunting plants and their main meal is human. Then the apocalypse kicked in, the virus spreads across the globe and the UN tried to pin it down. After 4 years, most government has fallen and the mutated plant is now the dominated specie on Earth while humanity choose to reside in fortress cities and nomad communities as the earth is barren after that war. But luckyly, the virus is imperfect and after 5 years, it kinda devolved and died out. The main character is a teenager who studied biology (mostly about plant) in another city when the apocalypse happened and had a goal to find his family along with surviving this new world. Along the way, he found out that some plant species have evolved to have human features and after years of research, he managed to tame them. Also, the MC breed the captured plant girls to create bodyguard.
