Tales of the World: Narikiri Dungeon 3

Frio and Kyaro, two teenagers, love the Tales legends and read about them every day before they go to sleep. After an earthquake, Dr. Brown finds an ancient time traveling machine in the ruins. Using this, they can go see the Tales legends. They go to sleep and prepare for tomorrow. Before Frio went to sleep, he read a Tales legend again. But this one ended strangely: the hero arrives too late and the world is destroyed. (wiki)