“Reveal the crime your wife committed a year ago.”The mouse Taiga (played by Jesse), who broke away from the beast and acted on his own, told Musashi (played by Sakurai Sho)'s wife Yuko (played by Higa Ami).A time bomb was placed on his collar.If Musashi cannot discover Yuko's crime within the stipulated time, Yuko will explode and die...!Sakura (Sony) and the command team immediately find out the whereabouts of Taiga and Yuko!Musashi and Honjo (Nozomi Takuchi) rushed to the scene together, but...!

Meanwhile, the beasts become increasingly wary of Tay's rampage.“He is dangerous.He can do anything.” If you still remember, a month ago, Dahe separated from the beast for “some reason and became lonely... At least that's what he thought!Suruga (played by Mayu Miyamoto), who was operating the computer, discovered something strange and looked at the beast!"...There is a traitor among us"——!

Who is the traitor??The reveal among the beasts begins!Yuko's sin... ”dog%'s true identity... the beast's true goal...!?More turbulent situations await Musashi!!