Qin, W. Decking, W. Gjonaj, E. Guetg, M.W. Guo, J.J. Liu, S. Wohlenberg, T. Zagorodnov, I. JACoW Publishing Geneva, Switzerland Fresh-slice lasing using dechirper induced time-dependent orbit oscillation is capable of producing high intensity two-color XFEL pulses and high power short pulses at femtosecond level. At the European XFEL, a dechirper system for fresh-slice applications for both the hard x-ray beamline SASE1 and the soft x-ray SASE3 beamline is being developed. In this contribution, we present the novel design of the wakefield structure and initial commissioning efforts.