Don't lose your smile (Danmachi x bloodborn) DLYS

After the death of his family in an accident, a lonely teenager in search of strength and a new friends goes to the labyrinth city of Orario. After a series of unfortunate events and stupid decisions, Crowley finds himself in a completely unfamiliar and frightening world. Oh yes, and something also damaged his hunter's mark, so his path will be much more difficult than expected.
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English is my second language, and in my native language I have never written anything resembling a complete work. I write fanfiction to improve my English and writing skills in general. Please be understanding. (I am still open to constructive criticism on any points).
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And of course, I do not own danmachi or bloodborn, as well as the original characters for the works.(Found the cover on Google images, if this causes any problems please contact me). I consider only the plot of this particular fanfic and OC to be mine.