MEMORY SYSTEM

PROBLEM TO BE SOLVED: To provide a high-quality memory system.SOLUTION: A memory system includes: a nonvolatile storage area 140; a first interface 120 that is connected to a first host device 200; a second interface 151 that is connected to a second host device 300 via radio communication; and a control unit 153 that establishes a connection to the second host device 300 by using a first radio communication setting when determining that a second radio communication setting for connection to the second host device 300 via radio communication is not held in a first area 141a. The nonvolatile storage area 140 includes: the first area 141a where the data write operation and read operation by the first and second host devices 200 and 300 are permitted; and a second area 141b that holds a first radio communication setting for connection to the second host device 300 via radio communication and where the data write operation and read operation by the first and second host devices 200 and 300 are inhibited.