"Sibling rivalry" is a term often heard; "sibling harmony," not so much. Brothers and sisters can be like two crabs fighting in a bucket, going round and round with no end or escape — even when they heart-of-hearts love each other.

Such is the case with Kazunari Kanayama (Masataka Kubota), a hard-working salesman for a printing company who one day finds his scapegrace older brother, Takuji (Hirofumi Arai), ensconced in his apartment after serving a stretch in prison for armed robbery. Soon Takuji is cleaning out Kazunari's savings account for a dubious get-rich-quick scheme, as his younger sibling rages and frets.

Then there is the diligent Yuria Isono (Keiko Enoue), who is running the family print shop and taking care of her bedridden grandfather while her pretty younger sister, Mako (Miwako Kakei), lazes about the office and the family manse. Calling herself an actress, Mako is only a cut or two above an extra, but charms any man who walks through the shop door, including Kazunari, to Yuria's poorly suppressed fury.