Just wanted to point this out...
In case you accidentally skipped the tutorial not knowing there's a reward, you can still complete it by doing all the tasks required. One reward not mentioned in this thread is the Graal of the Starting Quest, which some players might not have gotten yet. It's the only obtainable Graal in the game so far.
No idea if it can be dropped, though, because I haven't tried and don't want to risk losing it if the item vanishes. Apparently it's worth about 1,000 platinum, though.