Also i decoded this animation!
I managed to reverse the video and it seems a little girl asks Lilian a question while another girl in a dress runs around in the backgound. Most likely the girl asks a question that is based on something in Lilians traumatic past which makes her stare down (probably thinking) and then crying after remembering something traumatic from her past. while most likely Zeypr walks in the background. because he is wear a hoodie like in Drawn by me.