ABO setting (note: ABO gender is known at birth, not differentiated later), huge OOC
There are many CPs and they are very complicated, including Mi Yinglu, Zhongdu, Yisilioma, Puhong Fazhen, etc.
I don't know when people became interested in flowers.
Many people bought bright flowers, put them in greenhouses, and watered them with dew. Incomparably expensive nutrients appeared on the market, and florists became a popular profession. People will mobilize scientific researchers to study the genes of these flowers and turn them into perfect flowers.
People hate flowers of inferior varieties, and people pursue flowers of noble varieties.
This world has become a world of flowers.
Mission: Everyone is equal