*This is the current souls chart. There are some extra souls, but showing those now would be spoilers. We have the normal soul traits: red is determination, orange is bravery, yellow is justice, green is kindness, aqua is patience, blue is integrity, and violet is perseverance. Human souls are fully made of Determination, although the determination soul has the most out of any souls.
*We also have white, which are monster souls, and are fully made of magic. Only Boss Monster's souls are typically visible, as normal monster souls don't have enough magic to sustain themselves out of the body for very long or at all.
*Amalgamation souls have determination in them, but they become unstable not long after forming, and are never formed naturally. They are the ones with a red circle in the center. The red circle can be bigger or smaller, depending on how much determination they have. They can also take the shape of several hearts merged together if several monsters become entangled.
*Determination Gods are formed when a human absorbs one or more monster souls, which makes them extremely powerful and able to use magic on a much larger scale than normal humans would be able to. Humans can have magic, but they do not have unlimited attacks, and run out of stamina for magic attacks very quick. These souls can be made with any color of human soul.
*Monster Gods are formed when a monster absorbs one or more human souls, which makes them extremely powerful and able to withhold their body shape for much longer than normal. They can also save when outside of the underground, making them more powerful than humans and Determination Gods as neither of those can save outside of the underground. These souls can be made with any color of human soul, with the most powerful human soul showing up most in the monsters soul.
*Last is the hybrid souls, which are very rare and have to be made under certain circumstances. Only souls close in power can make them, and they have to be made with two soul traits that are similar. When souls are made outside of these conditions, the new soul will simply take after one of the parents. This also applies to human and monster marriages, and half of the children will end up monsters, while the other half end up human. The traits for the hybrid souls are: blood Orange= temerity, gold= courage, lime= benevolence, mint= empathy, sky blue= decency, indigo= composure, and magenta= ambition. There is the possibility of more hybrid traits in future generations, but they have yet to be seen.
I will explain the extra souls as they become relevant, but that is all I can say for now.