Mischievous Harem System in Another World

Roy was transmitted in fantasy world where he gained Mischievous harem system. After getting system missions and rewards he didn't know it was a good thing or bad to have system. He now only hoped to be able to live his life peacefully while working hard for completing his dream to take all beautiful woman of different races in his harem.

But will he able to live peacefully or not can only be seen in future.