Kirai

MUTANT

They were the people who possessed extraordinary abilities as a result of receiving a special gene from their ancestors. To put it simply, their job was to eliminate the monsters that existed in this world.

Whereas the special gene had not yet been invented ten years ago. To prevent the dungeon break, the government attempted to use heavy firearms and fire tanks. At first, their attacks had the potential to harm the monsters. However, some monsters, such as the Giant Centipede and the Magma Dragon, were immune to those attacks.

After a few months, American scientists discovered how to transmit the monster's gene through a specific human body. At the same time, it was discovered that there was an unknown energy living inside the monster's gene, which it named Mana.