(1).mp4 | 2

Several videos in children's learning series use this naming convention, such as Uncle Fred and Me from Storyfun 2 or the Two Friends and the Bear moral fable.

A stage adaptation trailer titled Trailer 2 (1).mp4 follows Danny and Dino on a quest for the last two concert tickets. 2 (1).mp4

Here are some interesting stories and animations related to your search: Several videos in children's learning series use this

If you are looking for general stories involving "two" characters or themes, here are a few notable options: The boy writes his self-insert character gaining powers

A popular 2D animation tells the story of two friends (a boy and a girl) who share a book to write a collaborative story. The boy writes his self-insert character gaining powers from a legendary sword, while the girl playfully retcons the story to have her own character take the sword instead.