Ten years have passed since the hero Rovel saved the kingdom, and despite being accompanied by a powerful spirit, the battle left him near death on the battlefield.
Origin, the spirit, decides to take him to his world to try and save his life. After spending so much time together, they fall in love and decide to marry.
From that moment on, Rovel transforms, and as a half-spirit, he begins to discover new abilities. But above all, his world is illuminated when his daughter, Ellen, is born.
As a half-spirit, Ellen also has certain special abilities, but above all, she remembers her past life and her fascination with the elements of the periodic table, allowing her to create various chemical reactions with her imagination.
One day, Rovel decides to take Ellen to the place where he lived so she can see him and enjoy the food; however, it isn’t long before some guards recognize him and shout that the hero has returned.
Rovel wants nothing to do with politics and decides to flee, but despite his efforts, one of his personal guards locates him and tells him what has happened since his disappearance.
His brother ended up married to the ambitious Princess Agidelle, to whom Rovel was forced into a betrothal by the King. The situation is far from ideal, so he asks Rovel to intervene.
Rovel immediately refuses to reappear in public, but when Ellen tells him that’s cowardly and that she no longer wants him, Rovel finally agrees. Before doing so, however, he summons Origin so that they may also be married in this world.
(父は英雄, 母は精霊, 娘の私は転生者.)
