post the saddest moment from the saddest anime that made u cry or emotional that u wanted to not have seen it

Tony Tony Choppers past in One Piece I can't find a vid of his past but it really made me sad when I seen it I kind of wish I didn't see his past

Either in Black Butler when Ciel reminisces about his parents or in Puella Magi when Mami died

One Piece: Portgas D. Ace's death
I can't even begin to image how Luffy felt