No. 6

Hidden Danger (1x6)

Data di messa in onda: Ago 12, 2011

Safu has returned to No. 6 because of her grandmothers’ death. While back, she learns of what has happened to Sion. At the same time, Sion and Nezumi continue their discussion over the future of No. 6 and the parasite bees. Nezumi receives a notice from Sion's mother informing him that Safu was taken by city officials. Nezumi contemplates whether or not to tell Sion as he would die trying to save her.