Lycoris Recoil, Vol. 4 (manga)

After a fun day off, Chisato and Takina are back on Lycoris duty! Their newest objective is to accompany the elderly Mr. Matsushita on one last tour of Tokyo, but this simple assignment might prove more difficult than it seems… With terrorists on the loose and the mysterious Alan Institute emerging from the shadows, can Chisato and Takina keep their mission success streak going?!