I'm trying to find this animated movie I only saw once when I was a kid. My dad got it from a thrift store, it was a dvd and the case was orange that's all I really remember. Upon seeing the movie, I think to was about all of these young adults going to a party or a country for the summer? I don't think it was for kids but more for teens, and the art style was similar to 6teen as in pic related. I have been trying to find it but I have no idea what it was called and I don't even remember the entire plot. Does anyone have any idea where I could look for it or what it could be?