Bleach Episode 18: Reclaim! The Power of the Shinigami
Episode 18 of 366 of Bleach, aired February 8, 2005, 23 minutes. Available with English subtitles and dub where released.
Episode summary
With Rukia's leaving, everyone's memory seems to have vanished as well. Only those who will be key players later have been able to remember. Ichigo needs training and luckily with school out, Urahara Kisuke will put him through some hardships.