Romance Doll (2020)

A life-size sex doll lives in a modest apartment in Tokyo, she can't speak nor move and she's the only companion of her master, a middle-aged man. He speaks to her, bathes and then make love every day when he returns from work.

The daily routine is broken when fantasy becomes reality. All of a sudden she comes to life and realizes she has a heart. She's unable to comprehend what is around her, however she knows there is a world waiting to be explored beyond the walls of the small floor and her selfish master. Eventually she dares to go outside world and meets people of all kinds, but no one is able to explain her what it means "to be alive".

Air Doll is based on the Japanese manga The Pneumatic Figure of a Girl and tells the story of a life-size inflatable doll used as a sex object for a lonely waiter who finds a heart and becomes a real person.

SIMILARITIES:
Both are 2020 Japanese stories that explore marriage
Both examine romantic human relationships with non-humans

DIFFERENCES:
PAtKSH = artificial intelligence/robot RD = inanimate object that only receives
PAtKSH = focuses more on human-AI relationships RD = focuses more on human to human relationships
PAtKSH = examines others' relationships with AI RD = mostly focuses on ML and FL