There is nothing in the rules against it. I tend to scrutinize a lot more closely games submitted to multiple jams just because most of the time, they are spam just people trying to get attention and not following the rules or theme of the jam. But if your game follows the rules and theme of this jam and is made within the allotted time frame and also fits in another jam, you can submit it to multiple jams.
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Thanks. I did read through the rules to check. The other jam is a Halloween VN jam and from what I understand of this jam's rules, VNs are allowed so long as they have plenty of choices that affect the game. My plan at this point is to have a magical creature going under cover as a human to solve a since mystery VNs have a lot of opportunities for the players decisions to affect the ending.