100 Floor Tower ~0.0001% Escape Probability~Storey Tower ; Chijou -kai ~Dasshutsu Kakuritsu .%~ ; Chijou Hyakkai ; One Hundred Storey Tower ; 地上階 ; 地上階〜脱出確率.%〜 ; 지상 층

People called “challengers” are gambling their life trying to escape from The Story Tower to win billion yen. But what will happen when Tatsuki Kuroumi awakes at this tower without remembering anything about his prior life, including entering the tower as challenger?