Tsubame Himeno, who possessed the [Sacred Crystal] passed down from generation to generation by the past sailor princesses, was targeted by Melchior, the King of Demons. Fellow sailor heroines fell into the hands of the enemy one after another, and the only remaining warrior was the princess (Himeno Tsubame). I was spending days that were crushed by anxiety. Meanwhile, a summons from the youma finally arrives at your home. His home is also known and monitored by demons. There is no escape. Knowing it's a trap, Tsubame goes to enemy territory alone and confronts Melchior, King of Demons. The determined princess wears the power of the crystal, which she could not control until now, and wipes out the demon soldiers. Although the princess has regained her confidence, Melchior assigns three executives at the same time. A princess who has no way to do anything against three strong enemies and takes damage one-sidedly. Melchior casts a curse on the princess, who is so weak that she cannot move, and becomes a body that cannot die. The princess is repeatedly fatally wounded by enemies, resurrected from the brink of death many times, and continues to experience the intense pain that cannot be escaped, and is exhausted. Due to the brainwashing of demons, he was tortured even by his loved ones, and finally the crystal was stolen, and the demon king revived. In front of the person she has never met before, the battered princess is raped by Melchior, King of Demons, just to confirm her resurrected body... [BAD END]