And so I'm at a Loss

Yuichi Sugawara is a freelancer, who spends his days meaninglessly. He lives with his long-term girlfriend Satomi Suzuki. One day, they start to argue over a trivial matter which causes Yuichi to leave their home. He wanders around and meets with his friends, sister, and mother. When he starts to feel uncomfortable around them, he leaves them behind. He then crosses paths with his father, Koji, for the first time in ten years. Koji also ran away from his family, including Yuichi, at that time. Koji then invites Yuichi to come over to his house. Hen accepts and turns off his smartphone to cut off all the relationships he has.