A new female platoon has arrived on Pekopon to help out the A.R.M.P.I.T. Though they have been on Pekopon for 5 months, Keroro and the others have never seen them. With the new platoon, they bring their Pekoponian friends and go through many adventures. Hint of Crack also!

What happens when Sinopa,a young girl,witnesses her mother's murder and literally runs into everyone's favorite Italian? How will he cope when he suddenly finds himself playing guardian to this sweet,but scared little girl?At least Germany's here to help.