Humans are one of four main races in Oceanfalls, signified by the suit of diamonds and associated with the color blue.
As of current events, the people live under the rule of Prince Ruit, with their territory covering roughly half of the Midworld.
It is stated in a random book found in the Red Tulip Town library as well as in the Rigmarole of Oshen that humans have the weakest natural abilities of all three races. There do seem to be some exceptions however, particularly in the case of the Umbra clan -- said to have unique abilities not seen in any of the other races -- and Lady Oshen, who created the barrier between the human and monster worlds, which has so far proven infallible in the face of all forceful attempts against it save for the powerful abilities of a winged.
In contrast to their shortcomings on the natural ability side, humans are considerably more advanced in the technological and artificial weapon department. Human structures seen throughout the comic are notably more "high tech" looking, than those belonging to the monsters (a few even appear to be reminiscent of skyscrapers). Humans also have anime, touch screen phones, and holograms while monsters notably do not.
Humans are the most numerous of the 3 main races, but have the shortest lifespan (100 years). As such, this means that humans naturally outnumber monsters to a great degree, and all sides know it.
Humans usually prefer stealth out of the three species.
Long before the events of the comic, the first celestial queen allowed monsters and humans to share the Midworld together, and split it into two halves. This ended in tragedy. The two races hold such a powerful hatred for each other, that they have warred on and on since their creation.
However, in the year 4513, thanks to a compromise between the late monster prince Suvillan Eious III and human princess Ruta Sapindale, a peace treaty between the two races was made for the first time in one hundred years.
For a decade, there was peace. During this time, monsters and humans were allowed to travel between each other's worlds, live in the company of the opposing race, and even cooperate in improving the welfare of the other nation.
Sadly this would not last, and the two races were thrown into a conflict so terrible, that not even the winged could intervene. A great war erupted between monsters and humans, that took the lives of many. The fighting was so great that, fearing for the stability of her people should she die, the Princess Ruta secretly passed the throne onto her son Ruit, in spite of the fact that he was not yet of age. Shortly after, she was killed at the hands of Suvillan III.
Only after the Lady Oshen murdered Suvillan III was the strife brought to an end. With the last of her power, Oshen used her ability to create an impenetrable Barrier between the monster and human worlds, as well as enveloping both worlds in a magical dome that separated them from the winged. Though she was successful, the warrior did not survive.
From what we've seen so far, the human world is rather cold, and is covered in water. Years before, the human world presumably appeared similar to the monster world. However with the advent of the Great Flood, sea levels began to rise drastically, forcing many of the inhabitants to flee their homes and seek shelter on higher ground. Now the Human Realm is comprised of various cities and settlements on islands which were once the peaks of very high mountains.
The realm is divided into four seas: Terminus (the north sea), Regalis (the south sea), Justitia (the east sea), and Glacialis (the west sea). The town of Icicle Bay is located in Glacialis, and appears to be one of the closest human settlements to the Barrier.
The Royal Palace is located in the southern portion of the realm, and a large city (possibly the capital) appears to lie some way north of Icicle Bay. One of the seafolk describes it as a 'metros polis.'
Like monsters and winged, human society is ruled by a singular Prince or Princess. When the current ruler dies, another candidate is swiftly chosen to take their place.
While not outright stated, it appears that there are a variety of noble families or clans that are involved in the high politics of the realm. Each family is named after a classification of flowering plants, with each member having a specific form of coloboma, making their pupils diamond-shaped. Under the right circumstances, one of the members of these families may ascend to the throne, though it is unknown what those circumstances may be.
Interestingly, a traditional naming convention of these royal families appears to involve giving names that are somewhat similar to the word ruit, which refers to the diamond shape or gemstone.
Humans appear to be the most technologically advanced of the races, with advancements leaping far ahead that of monsters in only six years. Examples of human technology shown so far include holographic projections, touchscreen phones, and advanced prosthetic technology.
Humans can electronically produce, emulate, and sample music, which Monsters think of as soulless and a false, disrespectful action to the very *concept* of music itself. They both produce similar ratios of "bad-to-good" music in the end, however. Humans also have celebrity singers, while Monsters think of gaining fame for simply having a good voice to be a foolish idea.
Humans need to have an ID and to be at least 20 to drink.
Humans have all the regular hair colors we do: Brown, black, blonde, etc. Because of this, dying hair is frowned upon. All races can dye their hair color if they wanted to, it's a bit frowned upon for humans to do that, because unnatural rainbow hair colors remind people of monsters.
Spades and Diamonds, or the symbols of the opposing side, by themselves mean nothing. A small ornament may simply raise some eyebrows, but a full-blown masquerade will get you in trouble with authority. By themselves, spades aren't always a negative symbol for humans and vise versa with diamonds for monsters - it's only when they're used to represent the respective enemy's world that they become a weighty thing. Expressing any idea of accepting the opposing side as a monster or as a human is Very dangerous. There's some people on both sides who disapprove of the conflicts, but they keep it to themselves because they know it's safer to play along. There's definitely been killings of people whose crime was simply being sympathetic towards their enemy as well. The laws and history of both sides demands that everyone be wary of the enemy, etc etc. No room for an argument about it or you get thrown into prison for daring to speak up, or worse, be made an example of via execution.
Love between humans and monsters is possible. It's the purest form of forbidden interactions there is for both sides, just because of their ethics and rules that demand intense hatred for one another. Somewhere in their worlds, unsung stories of romanticized "forbidden love" exist as a secret guilty reading material. All that aside, speaking from a technical standpoint, it is possible for them to fall in love. And again from that standpoint, there is nothing inherently wrong with it. The involved parties just wouldn't be able to carry on their bloodlines. But nobody in power cares for these technical aspects. It all doesn't matter, because the way things are, it's all about hating your enemy there.