The episodes were given different numbers for the DVD release because the original recap episodes were not included as part of the main anime , instead being published together on the final DVD and re-numbered as 8.5 , 16.5 and 24.5 making the series only 24 episodes . These episodes were re-numbered for the DVD release as episodes 8.5 and 16.5 , respectively , and removed from their original sequence by being published together on the final DVD . As a result , the series is 24 episodes long on DVD .