A family gathers together for a commemorative ritual whose nature only gradually becomes clear.

Adapted from the bestselling Japanese autobiography of the same title, this gentle coming-of-age drama concerns an adolescent boy, Boku - Masaya, torn between the inherited recklessness of his father Oton and the inherited responsibility, wisdom and emotional strength of his mother Okan. Following a period of intensely rebellious behavior, Boku learns that his mom has contracted cancer; suddenly, his mother comes to live with him in Tokyo the entire emotional landscape of his life is altered.

Shuichi Furukawa receives a phone call from his mother. She reminds him that they are moving the next day. The following day, Shuichi takes a train ride back to his hometown. He arrives at his parents home, but nobody is home. He looks for the house key under a potted plant but can't find the key. He starts to thinks back to his childhood days in his parents home. Shuichi grew up with his younger brother, older sister, father who ran a shoe making business out of their garage and mother. Shuichi grew up with a crush on an older woman who lived next door and he loved to make piggy banks out of empty whiskey bottles. One day on a school picnic, Shuichi's classmates grabbed a lunchbox from a fellow student and eventually gave the lunch box to Shuichi. All the other students chanted "throw it away," while Shuichi's former friend looked on in despair.

In a poor district of Edo lives a young samurai named Soza. He has been sent by his clan to avenge the death of his father. He isn't an accomplished swordsman however, and he prefers sharing the life of the residents, teaching the kids how to write etc. When he finally finds the man he is looking for, he will have to decide whether he follows the way of the samurai or chooses peace and reconciliation.