Yumi and the Yamayuri Council have found two new helpers in Kanako and Toko. Unfortunately, their assistance comes with a certain tension, as neither girl is particularly fond of the other and both seem likely candidates to be Yumi's petite soeur. But will either one be a good fit for Yumi? As the school year marches on, the work for the Yamayuri Council piles up, and pressure begins to mount for Yumi to make her final decision. Contains the complete 13-episode fourth season (TV), plus "specials" 1-11.