Akihabara Dennou Gumi: 2011-nen no Natsuyasumi

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Synopsis

One year after Crane's visit to earth, Hibari dreams about him not being able to sleep well. So, she decides that the Cyberteam has to travel towards the Metatrone and find out if things are ok. Metatrone surveillance system has gone wild, and it's up to Hibari and her friends to fix things out and help Prince Crane. (Source: Anime News Network)