General Information

Gates
A gate was first divided into general and surprise types. A general type had signs of its appearance, and thus it could be prepared for, but a surprise gate would appear without warning. The next difference was persistent versus single shot, which was merely the difference of whether the gate lasted for a long time or not. Finally, an emission type gate poured monsters out into the area, but the absorption type brought humans in when they made contact within the gate. Specifically, it brought them to a subspace environment full of monsters that existed inside.

Erosion : It is to pollute the environment by force. The area becomes a subspace that cannot be escaped without destroying the gate.

Absorptive gates were also usually temporality deactivated once a condition was met inside the gate, such as killing all the monsters or a specific boss monster. At that point, it would spit the humans back out. That was called clearing, and some gates would be maintained after they were cleared. It was possible for humans to repetitively attack those gates, and humans had begun to refer to them as dungeons.

skill stone
A skill stone was a crystal that forcibly awakened a skill, and it was an extremely rare type of mana stone possessed by a monster. The vast majority of them had a ridiculously expensive price range, and just possessing one wasn’t enough to obtain the corresponding skill. Depending on the compatibility with other skills, it was possible to fail acquiring the skill but still destroy the stone. But learning the lower ranks will make it easier to learn the higher-ranked skill as well. The probability of the skill stone being wasted is lowered.

Attribute magic
Attribute magic is a type of magic that specializes in dealing with only that one attribute. Compared to normal magic, it is more powerful and has unique characteristics, but it makes it difficult to use other magic.

Mercenary
That was the path for those who couldn’t handle mana because they hadn’t awakened or had trouble handling it even after they did. They mainly dealt with monsters using modern weapons combined with mana stones, but they couldn’t catch high-ranking monsters because of their limits. The skilled among them could deal with multiple monsters at once, however, making them particularly active combatants in fighting emissive-type gates.

Monster
All monsters are hostile to humans, but some of them suppress their instincts to place survival as their top priority. This is especially the case for non-living monsters born under the influence of humans or legends and myths rather than creature-type monsters born with instincts. Non-living monsters are inorganic monsters that cannot be defined in the form of an animal or plant. Living Armor is one example. These monsters don’t have a living body, so they aren’t swept away by their instincts. However, they have a strong desire to survive as they weren’t originally alive.