1~ The dawn of a new adventure

After discovering an old mansion in the middle of a forest while he was on his way to work, Luigi met a strange scientist: Professor Elvin Gadd. The latter asked the young plumber if he would like to help him with the haunted mansions spread across the kingdom.
By accepting E. Gadd's offer, Luigi didn't know that he had put himself into a very complicated situation, and the nightmare was just beginning...

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All characters belong to Nintendo, except for the OC that I have created.
This story is inspired by the games and the movie.

(Co-written with @lorienstale)