Overworked, still single, 38-year-old salaryman Sakurai Kazuaki collides with a young man at the train station - causing the magazine he was carrying to be spoiled. This young man, Minagawa Youichi, is a student at an art college and lives in a big, old-fashioned mansion with two of his cousins. Since he happens to own the same magazine, he takes Sakurai to his house, saying "If I trade my copy with yours, you'll have nothing to complain about, right?" 11g5t

Despite feeling annoyed and frustrated by the unsociable Youichi's arrogant behaviour, Sakurai soon finds himself a frequent visitor of the secluded household, inexplicably drawn to its enigmatic owner...