This is a great read. The plot is good, the art is too and the fan service is plenty. Even though the title is stated harem in it, it still just one girl in it. It's good though rather than blindly accept girl every certain chapters. It means the mc at least not a lucky guy who always get girl for doing nothing.
It's focus more to exploring dungeon and improving everyday's life. It's not deep but still make me want to look forward what mc wants to do in the next day