Kazunari Kanayama is a sincere young man who works at a printing company. His older brother Takuji is a violent troublemaker and spent time in prison.
Meanwhile, Yuria Ikuno is smart and runs her family's printing business. She isn't very attractive though. Her younger sister Mako Ikuno isn't smart, but she is popular due to her attractiveness and outgoing personality.
- Native title: 犬猿
- Also Known as: Cats and Dogs;Thicker Than Water