"Yeon-hwa" is the second version of the previously released "Yeon". The word "Yeon" means any kind of relationship between people or objects. The word "Yeon-hwa" uses same Chinese character for "Yeon" but depending on how "hwa" is written, it can mean many things such as lifetime, lotus, or relationship.
Similar to "Yeon", the algorithm behind "Yeon-hwa" is percolation which describes the behavior of a network.
