When you first visit the open world in Star Ocean the Second Story R, you will quickly notice some treasure chests looking a bit out of place. You cannot reach them on foot no matter what you do, but there’s another simple way to get that hidden loot.
How to Open Unreachable World Map Chests in Star Ocean Second Story R
You need to get the Super Specialty Bunny Call before you can open those faraway chests. Bunny Call is unlocked by having at least two characters with the Familiar ability at Level 4 and one with Scouting at Level 1. You can select the Super Specialty while on the World Map and hope for the bunny to hear your call. There’s no penalty for failing to call for a bunny, and there’s even an achievement if you fail enough times.