Within the city of Kamurocho, you will be able to find five different locked safes. Each of these safes hold hidden content for you to obtain with Kiryu, but only if you can find the corresponding Key to that safe. Of course, these keys will be hidden extremely out of sight, causing most players to have to scour the city for these scattered keys. If you don't want the hassle of finding these five safes and their corresponding keys around Kamurocho, simply keep reading to learn of all their secret locations!
The first safe you are bound to find in Kamurocho is found within the Yoshida Batting Center. In order to find its Key, head to the street that runs directly behind the back of the batting center. You can find the key on the stairs leading to the roof of the building!
The next safe can be found in one of the buildings on West Taihei Boulevard. The Key to it is pretty easy to find, as it sits just outside the entrance to said building, directly next to a traffic cone!
The next safe can be found at the back of Lullaby Mahjong found on Tenkaichi Street. You can find the Key to open this safe on the very first set of stairs after first entering said building!
The next safe can be found within an empty shop just off of Nakamichi Alley. If you head within this building, you will be able to find the Key to its safe on the floor behind two boxes in the far back left of the shop!
And finally, the fifth safe in Kamurocho can be found in the building that houses both the Modern Mahjong and the Nyan Nyan Cafe off Senryo Avenue. In order to find the Key to this safe, look on the floor behind the stairs in this very building!