Se-ha who is physically handicapped and Dong-gu who is mentally handicapped are not their own brothers. But while living 20 years together, the two became indispensable to each other. One day, the mother of Dong-gu suddenly visits him and acts as his guardian.

The most important thing for Na-young, who has lived her entire life in a small seaside village, is taking care of her family and friends. However, her mother tries to sell their precious house full of memories, and her younger brother insists on moving to Seoul. While Na-young struggles to accept the changes, she comes across bowling and begins to spend more and more time at the bowling alley.

The partnership between Ha-neul and Bo-ra start wavering in the midst of launching their startup when their firefighting thermal imaging camera project fails followed by a notice to move out of their studio due to outstanding monthly rent. As things go from bad to worse, a strange man suddenly appears in the middle of their studio, insisting that the place is his factory.

Do-hyun, an artistic gymnastics player, is living with his mother suffering from Alzheimer’s disease. He decides to quit gymnastics, and he meets a beautiful girl at the library after he got sentenced to community service. They get closer and share their secrets and worries. Can they become ‘the Overman’ creating a new life?