Dainsleif: Grand order DGO

It was a day like any other in the city of London. Citizens were proceeding with their jobs, and the weather was trash as usual. Every day was the same; workers going to work, traffic, students going to school.
London was protected by a barrier to prevent any type of demon to enter. Demons are the main threat since the beginning of 2021. Now, the year is 2040 and it has been 19 years since demons have been on the surface of the earth.
There are 5 demon classes. Class 1 (weak demons), Class 2 (Intermediate demons), Class 3 (Strong demons) Class 4 (super-strong demons) Class 5 (The godlike). Although it is rare for Class 4 and 5 demons to appear, they always send their spires to and human flesh and bring it to them.
When a threat alike first appeared, humans were defenceless, however, it was at the beginning of 2022 that humans started to evolve. Humans started to obtain mysterious powers now called blessings. Blessing are powered humans have managed to receive through evolution to increase their physical power, spirit etc.
Blessings are based around elementals. If humans elemental is fire, then his blessing with be based around fire elemental.
The ranger organisation which is located in Berlin also gives flying skates to the blessed ones to ease their transportation.
There are many types of elementals but the basic ones are fire, water, wind, rock, metal. These basic elementals create a branch of a variety of advanced elementals. Only 30% of the population have blessings, so this means any person who has an elemental is destined to become a ranger.