Dareka ga, Mite Iru (2020)

Toneri Shinichi is a young man living in a condominium in Saitama. He's someone that fails at everything he does. Whenever he gets a new job, he gets quickly fired. On the other hand, Kashiya Jiro is the resident in the room next to Shinichi's. He suddenly discovers a hole in the wall which he can use to see Shinichi. He uses it to watch Shinichi in secret. One day, his daughter Akane also discovers the hole and the situation rapidly changes.