Milk inside a bag of milk inside a bag of milk

The player controls a girl who is trying to help the protagonist go to the store and buy a bag of milk. She suffers from an unnamed mental illness that makes a simple task like that very difficult. After successfully getting the milk, there is some dialogue where she tends to break the 4th wall and wants to speak to the reader. She talks about her mental illness and how she takes different medications. She then tells the player about her father's suicide. Afterward, the character they play urges her to go home. When the player gets home, they see their mother who is depicted as the creepy mask-like face with no pupils. She asks if they got the milk and if the new medicine helped. The girl says yes and the mother then tells her to go to bed. She replies "Yes, Mom."