. "This system is made for Akashi and Akashi Kai, if you have her as your secretary ship, you will be able to use the Improvement Arsenal. By using Improvement Materials, Development Materials and resources, equipment can be improved and upgraded into a better equipment. Equipment that can be improved depend on the day of the week and the ship in the second slot."@en . . . . . . "Akashi's Improvement Arsenal/Introduction"@en . "This system is made for Akashi and Akashi Kai, if you have her as your secretary ship, you will be able to use the Improvement Arsenal. By using Improvement Materials, Development Materials and resources, equipment can be improved and upgraded into a better equipment. Equipment that can be improved depend on the day of the week and the ship in the second slot."@en .