How to do stack filling behind your back?

I’m making a game in which you need to cut wheat when cutting, a block falls out that the player can pick up how to make sure that when lifting the block, these blocks fly behind the character’s back where he has a stack.

Example

If you can just make an animation, do it and be done.

If it has to source from slightly different start positions, use a tweening package (like Leantween, DOTWeen, iTween) and be done.

Otherwise, write the code to move it yourself, but that’s like a last resort.

If you used DOTween, could you tell me exactly how to write it?