Kazuma, a young man who has lost all his memories, finds himself in a strange room with five other youngsters when he wakes up. In these rooms, riddles spring up...

Thanks to Kazuma, the five companions have overcome trial after trial in this bizarre world and survived. But now that he has fallen into a mysterious slumber, the rest are...

There is no respite for Kazuma and the others as they face deadly trials one after another. Fortunately, Kazuma has managed to successfully save the day each time (when he...

There is no respite for Kazuma and the others as they face deadly trials one after another. Fortunately, Kazuma has managed to successfully save the day each time (when he...

There is no respite for Kazuma and the others as they face deadly trials one after another. Fortunately, Kazuma has managed to successfully save the day each time (when he...