The name of a Japanese animation in which a girl chases a boy for answers

So look there’s a girl walking home or something
Then all of a sudden a boy comes running
He is being chased by police officers he’s an outlaw
So he asks the girl to tell them he went another way
Then they talk and shit ig
And during that he maybe gives the girl a gift
And then he runs away
And from there on the girl runs after him
She even gets close to him sometimes but he manages to get away because the guy is being chased by Mysterios people
In the final scene The girl is on a rocket and goes to the moon chasing him
Where she can see the boy painting
And while she tries to run to him he leaves and vanishes
And the painting is left behind