anime United

It started in a dark Knight every single anime show Walking around clueless about how they got into a forest until they saw a portal they all went in. Naruto, sailor moon,Hunter x Hunter,My hero, Fruits basket,Attack on Titans,Inuyasha. When the portal took him to the different dimension they all met each other they all started talking about how they got there or close but not anything I want to figure it out at first they start fighting each other but then they learned that they were the enemies so they stopped to get the day started walking around forest