The swordsman who is lost in the mist

Kaligo Swordsmen, student high school, happily came back from class, he had nowhere to rush, because the family and friends he has no...
The purse was seen in few shabby notes, which is barely enough, at least for a week.
-Oh, money problem, can I also join the Legion of Protection, they say there's good pay for killing various creatures from the "other side."
Just a month ago, the world was calm and orderly, but with the appearance of these interspatial rifts, the Earth was filled with creatures of all sorts.
Japan is one of the very first countries that was attacked, then the whole world was drowned in blood.
Armed conflicts between countries were stopped for the sake of saving the world.
Russia is the first who let the first blood of monsters, courage or madness, the world did not know with what fury the Russians can destroy all evil spirits, under the impression of this brutal struggle, other countries founded the Legion of Protection, withstood the first wave, the world united.
However, internal unrest still continued.

*rustle*

Kaligo's train of thought was cut short by the noise from the alley, and the next moment Kaligo saw the knife sticking out of his chest, looking at the thick, dark blood. that dripping big drops, he lost consciousness...
- No. this can't be the end...

Darkness, and suddenly a rift, a guy of 16-18 years old came out of it, his eyes spewed light similar to the sun, which did not give him a special opportunity to examine it.

"Who are you?" What's happening? Kaligo was very frightened, his voice was trembling, and he was as pale as chalk.
"I am Mortis Messorim, the ultimate being who can grant you life in return for..."
??
"That's how quickly, though, you'll be my friend's protection for life."
Would you like to sign a contract ?Mortis handed him something that looked like a root.
Squeeze it if you agree.

Kaligo reached out and squeezed the root, the small appendages biting into his body.
Feeling a great pain, Kaligo fell back into the abyss...