In article number 2004548, Lei Wang, Ziqi Wang, Hao Wang, Wanhai Xu, and co‐workers propose a transformable dual‐inhibition system (TDS) based on a self‐assembly peptide to reduce metastasis of renal cancer via the inhibition of neovascular endothelial cells and cancer stem cells simultaneously. The TDS has great value in suppressing renal cancer metastasis. Additionally, this newly developed TDS also gives new ideas for in situ constructed modular functional materials and diverse bio‐applications.