After three tries, the protagonist is still unable to beat the dungeon. He asks his brother if he wrote the code of the dungeon, and his brother replies that he didn't. The protagonist wonders why he can't defeat the dungeon after three tries. He wonders if the protagonist should find its weakness, and defeat it. His brother points out that a normal player wouldn't do that, and that's why the protagonist thinks it's a good idea to find the weakness and defeat