Kokomi is 23 years old and works in advertising sales. She lives with her father at her parents' home. Her mother died when she was in middle school, and she still relies on her father and has not been able to leave her parents at all. Recently, she often drinks alcohol at work, and sometimes she loses her memory... Every time this happens, her father takes care of her, but the other day, she finally did it... in front of her father...