Once upon a time, there was a kingdom in peace. Just like all kingdoms in stories there was a beautiful princess, which was looked up to by everyone.
Then one day, a group of monsters invaded the royal city and took the princess.
The angry king let thousands of soldiers look for the princess. But three months later, no information was sought.
At the time when the king would almost be despair. A mysterious hero appeared. He told the king that he would bring the princess back in a week. The king agreed and said he would reward the hero a lot of money and let the princess marry him if the hero achieved that.
The hero found that there was a tower with lots of monsters where the princess was. There were lots of dead bodies around the tower which looked like the missing soldiers. The hero got into the tower and started his adventure.
The hero went all the way and got to the 21st floor. There was a woman looked like a princess. The hero walked to save her. But beyond all expectations, the princess was a fake! The devil which cheated on him escaped after battling. He found a hoe and he thought it was likely that the hoe belonged to a thief who was at the 2nd floor.
At the ground floor of 2 the hero found a fairy. The fairy told him that the appraised chapters could improve his power. The hero beaten himself in order to choose a chapter and found an appraiser to improve the power himself. On the way he got 3 Excalibur cards from an old man, which could change strong monsters into the weakest monster in the tower——the green slimes. The hero also got some anydoors which could change a wall or lava into a yellow door which could be opened by a yellow key.
The hero gave the hoe to the thief and the thief opened the stairs of the hidden underground floors. The hero went downstairs to find out the truth.
When he went downstairs to the ground floor of 25, he found a devil looked like the boss of the tower and the princess was at the back of the devil. The hero killed the boss and went to the princess. In order to insurance, he used an Excalibur card to try to change the princess into a piece of slime. If she was a fake again, that would succeed. He was right! The princess was a fake, too! He killed the slime.
"How could you found that?"A flustered and exasperated voice said, "But what will you do next? There are no ways to leave here!“
The hero found that there were lavas all of the ground floor of 24.He went downstairs, "There should be a way out…"He thought.
Where there's a will, there's a way. The hero used an anydoor at the end of the road and it worked! A new way appeared. 
The hero found out the princess and brought her back to the kingdom. There was 9 days since he left the royal city so the king needed not to give him money, but the king was so happy that he wanted to reward the hero with the money. The hero refused.
Several days later, the hero disappeared without any messages.