You need every edge you can to survive the deadly Genma in Kyoto’s streets of Onimusha: Way of the Sword. Miyamoto Musashi is only as effective as the gear he carries, and to upgrade your character’s skills, one of the crucial upgrade materials you need is Oni Stones. These items let you expand the Oni Magic gauge, which you need for unleashing elemental attacks against bosses and enemy crowds.
While the game gives you a few through the main story, you will get most of Oni Stones from hidden chests, secret rooms, and side missions across areas like Arashiyama and Eastern Kyoto. This location guide shows where to find every Onimusha: Way of the Sword Oni Stone across the map to level up Musashi’s supernatural powers.
All Oni Stone Locations
There are 54 Oni Stones you can collect in the game, of which 10 Oni Stones are automatic, unmissable rewards from main story missions and the other 44 are optional collectibles you can earn from exploration chests, Chance Encounters, Mysteries of Kyoto, Hidden Treasures, and Oni Portals. Another reason to hunt for the stones is to fully upgrade your skills to unlock the Well-Rounded trophy/achievement.
Important Note: A single playthrough doesn’t provide enough Oni Stones to fully upgrade all Gauntlet skills but your progress can carry over into New Game+, so you can collect the remaining stones and complete your upgrades.
| Oni Stone | Area | How to Get + Location |
|---|---|---|
| #1 | Eastern Kyoto | Reward for completing the main story mission “Careful What You Wish For“. |
| #2 | Eastern Kyoto | Found down a side alley in Kyoto, guarded by a Cleaver Genma. Defeat the enemy to open the chest. |
| #3 | Eastern Kyoto | Reward for completing the main story mission “A Strength in Refuge“. |
| #4 | Eastern Kyoto | Reward for completing the main story mission “Patching up the Pouch“. |
| #5 | Eastern Kyoto | Reward for completing the main story mission “What Lurks in the Shadows“. |
| #6 | Kyoto Imperial Palace | Found inside the Palace Interior. Check the secluded alcove corridor to find the chest. |
| #7 | Eastern Kyoto | Reward for completing the “Pale Lights in a Night Sky” Chance Encounter. (Talk to the woman near Kiyomizu-zaka). |
| #8 + #9 | Eastern Kyoto | Reward for completing the main story mission “The Roots of All Evil“. |
| #10 | Eastern Kyoto | Found west of Gojo Street – East Spirit Mirror in an open stall behind wooden fences. |
| #11 | Eastern Kyoto | Found on the small riverbank/island in western Kyoto, north of the broken bridge. |
| #12 | Eastern Kyoto | Found inside the tunnel in the northwest lake area. Open the Oni Portal #1 with Oni Power and clear the challenge. |
| #13 | Eastern Kyoto | Reward for completing the main story mission “Shadows Fall“. |
| #14 + #15 | Eastern Kyoto | Reward for completing the “Ace Archer: Kiyomizu-dera Temple” Archery Challenge. |
| #16 | Eastern Kyoto | Reward for completing the main story mission “A Tempest at the Temple“. |
| #17 + #18 | Eastern Kyoto | Complete the “Something in the Water” Mystery of Kyoto to get it as a reward. (Prerequisite: Must complete the side quest “A Wife’s Prayer” first to unlock this quest). |
| #19 + #20 | Eastern Kyoto | Receive Old Drawing No. 1 from the woman. Climb the scaffolding ladders to the rooftops at the top of Kiyomizu-zaka Slope, then drop behind the fence to loot the Hidden Oni Treasure #1 chest. |
| #21 | Eastern Kyoto | Reward for completing the “Noisy Neighbors” Chance Encounter. (Speak to the distressed woman wearing a red outfit beside the wooden cart). |
| #22 + #23 | Eastern Kyoto | Receive Old Drawing No. 2 (“Where the Buddhas overlook the flow”). Head behind the waterfall near Kiyomizu-zaka and use Oni Power to reveal the Hidden Oni Treasure #2 chest behind the rock alcove. |
| #24 | Mount Oe | Reward for completing the main story mission “The Demon on the Mount“. |
| #25 | Eastern Kyoto | Enter the Oni Portal #2 in the northern temple ruins. (Prerequisite: Must complete Oni Portal #1 first to unlock it.) |
| #26 + #27 | Eastern Kyoto | Complete “The Odd Couples” Chance Encounter. (Speak to the man near the street lanterns discussing lovers). |
| #28 + #29 | Eastern Kyoto | Reward for completing “The Faceless” Mystery of Kyoto. |
| #30 + #31 | Eastern Kyoto | Reward for completing “Worm-ly Ways” Mystery of Kyoto. (Talk to the devotee woman outside the shrine hall). |
| #32 | Mount Oe | Found in the Cave level of Mount Oe, inside the chamber unlocked after defeating the Genma guarding the Oni-kui Mushi Barrier. |
| #33 | Mount Oe | Found at Spirit Mirror: Cave I on the wooden pathway leading from the Castle Courtyard up to the Cave. Open the chest placed on the first rocky outcrop on the right. |
| #34 + #35 | Eastern Kyoto | Reward for completing the “Ace Archer: Mount Oe” Chance Encounter. (Talk to the monk NPC in town). |
| #36 + #37 | Eastern Kyoto | Reward for completing the “A Fishy Story” Chance Encounter. (Talk to the fish vendor woman standing near the baskets). |
| #38 | Eastern Kyoto | Found at the dead end of a narrow back alley south of the Kiyomizu-zaka Slope Spirit Mirror. |
| #39 | Eastern Kyoto | Located inside the residential building north of Emma’s Hall. |
| #40 + #41 | Eastern Kyoto | South of the Yasaka Shrine Spirit Mirror, climb the bamboo ladder to the rooftop, walk across, and drop down into the enclosed backyard debris area to loot the chest for a couple of stones. |
| #42 | Eastern Kyoto | Enter the house east of the Shijo Street Spirit Mirror and climb the ladder into the upstairs attic to find the chest. |
| #43 + #44 | Eastern Kyoto | Reward for completing the main story mission “In the Light of an Icy Moon“. |
| #45 | Arashiyama | Located east of the Temple Spirit Mirror in Arashiyama, hidden behind a wooden fence beside the bamboo stream. |
| #46 | Eastern Kyoto | Located down a street corridor west of the Shijo Street Spirit Mirror. |
| #47 + #48 | Eastern Kyoto | Reward for completing the “Ace Archer: Arashiyama” Archery Challenge. |
| #49 + #50 | Eastern Kyoto | Receive Old Drawing No. 5 (“The highest place in the capital”). Enter Yasaka Pagoda, climb the interior ladders to the top floor, step onto the exterior roof, and use Oni Power to reveal the Hidden Oni Treasure #5. |
| #51 | Eastern Kyoto | Located southeast of the Kiyomizu-zaka Slope Spirit Mirror. Go up the stone staircase and turn into the alley courtyard on the left. |
| #52 | Arashiyama | Search the bamboo forest in southern Kyoto. |
| #53 + #54 | Shanoah Castle | Found inside the Keep Area in the same room as the Keep Area Spirit Mirror, right before the final climb. |
