Within the city of Onomichi, 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 Onomichi, simply keep reading to learn of all their secret locations!
The first Safe you are bound to find in Onomichi lies on the main street just north of Jingai Ferry Dock. Its key can be found at the very end of the ferry pier!
The next Safe you can find is actually located under Moreno on Jingai Main Street in the Central Shopping District. Its key can be found on the roof of the arcade, which is access by using the ladder at the beginning of Shops Alley!
The next Safe is a tad difficult to find, being located through a narrow gap near the vending machine next to Otafuku Pawn. In order to find its key, you will need to first climb the ladder next to the same vending machine. Its key can be found on the shelf to the right after reaching the top of the ladder!
The next Safe is also a little hard to find. First, you will need to take the ramp down from Pedestrian Bridge to the road on the left. From there, you should be able to find the safe in a parking bay a short ways away. Its key can be found on the far south end of Pedestrian Bridge!
And finally, the fifth Safe found in Onomichi can be found in a garage just south of Second Hill. Its key can be found within a mailbox located on a stone stairway, just off the the right of Second Hill!