I had a lot of fun with this one. It takes Hetalia in a completely ridiculous direction with aliens called the Pict, who suck all the color and happiness out of Earth, leaving everyone looking like blank white figures. The random jokes and cameos are great, Switzerland's neutrality somehow keeping UFOs away had me laughing. The ending is exactly the kind of nonsense I'd expect from Hetalia, with Italy basically saving the world by drawing faces on everyone with a marker. It's goofy, chaotic, and surprisingly wholesome.