Summoned as the legendary rare one in another world, the main character, Shingo Kazami, is a veterinarian who struggles to save many lives. Liz, the commander of the Slave Knights, whom Kazami trusts, will be executed for falling into disgrace with her master, Count Dony! In order to save Liz's life and collect funds to buy her out, Kazami sets off on a bounty hunter's journey with some familiar faces...