(??????????? Memori Ga Katari Hajimeru)
Sinopsis:
Katsuragi Takumi was the founder of Faust! Sento and Ryuga are frozen by these words that BloodStark just revealed to them. A fearsome power may be at work behind the murder of Katsuragi Takumi. And this is mostly because Build�s lost memories are involved. There is a sign that secret data entrusted to his mother by Katsuragi might be a clue. While talking to Katsuragi�s mother, these two become certain that this data collection exists. The fight between Build and Faust arises once again over the existence of this mysterious data�