When you hit a level four friendship with the Cheshire Cat, you'll unlock the It's All Nonsense quest. He'll ask you to set up what he calls a "nonsense party" to make amends with the villagers he's already upset while moving in. It's the least he could do after the chaos he's caused...
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How to complete the It's All Nonsense quest in Disney Dreamlight Valley
Source: PC Gamer (opens in a new tab)