Dungeon System: Only I level Up

[Ding!]
[Congraluation for receiving Dungeon System]
[You have received the title 'Player']
This window changed Roel's world.
When the world changed, dungeons appeared, monsters roamed, and Venators awakened.
They are unique people with unique abilities that could subdue monsters and are highly valued.
Roel being ordinary barely survives doing manual labor.
He is so poor, that he sleeps on the street.
His world changed when he received the system.
Leveling up inside his own dungeon, killing monsters in other dungeons, and creating his own dungeon.
Fun things come at fun price.
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English isn't my first language, nor I am proficient in English.
I don't have a stash of unique words.
And my flow may be like a drawing of a child.
Simple words and simple man, that is my writing and me.
Read it and give me a review!!!
Ps. Cover's not mine. OK!!!