She is only 2 years younger than me and explains to me how she did it without my knowing it until now. My explanation of why I was not there: I was in the bathroom and it lasted for at least 20 minutes to go up because I saw the sunset (the bathroom is right on the 2nd floor so going up to the 4th floor is complicated) and when I was coming to the room my mother came (from 3 floor) and told me to do him a favor and take half an hour (I was making cookies with my mother) and when I arrived I saw my sister on my computer (I do not know why, because we both have our own computers) and when I saw is that I had made an animation and I uploaded it :/