"Mom, I'm sorry. Please don't die." When Henry realizes death is at his mother's doorstep, he strikes a deal with a lifespan dealer to give years of his own life to his ailing mother. Now, his mother is a 20-year-old college student with a full life ahead of her, and Henry devotes his remaining days to helping her live life to the fullest. But things turn complicated when his friend falls in love with her!

On the run from his troubled past, Juuzou is forced into competing in a deadly underground fighting tournament. Skilled in the respected martial art Takemiya-ryuu, Juuzou must navigate a path filled with formidable foes and his personal demons — all while dealing with a bounty of three million yen on his head and a detective on his trail.

The second season of .