What to know

  • Oshima Coast unlocks late in the main story; accessing it requires quest progress.
  • The region includes Shrines, Altars, Camps, Bounties, and special mythic quests.
  • 100% completion involves tackling core activities: collectibles, duels, hidden puzzles, and platforming challenges.
  • Some objectives, like Mythic Tales or Reliquaries, need previous chapters or side quests cleared.

After unlocking Oshima Coast, the game offers a dense concentration of final quests, collectibles, and activities—perfect for those aiming for 100% completion. Here’s how you can methodically clear this region step by step, ensuring nothing is missed.

Oshima Coast progression overview

Stage Objective / Action Description What to Expect
1. Finish previous regions Complete key story arcs in Ishikari Ridge and Teshio Plains Required to unlock travel route to Oshima Coast Access to final region becomes available
2. Receive main quest “The Saito Brothers” Triggers after meeting Yotei Six members and finishing The Old Inn segment This quest directs you south toward the Oshima Gate Stronger enemy encounters begin
3. Travel through Oshima Gatehouse Follow mountain pass via horseback or on foot; fight enemy squads Combat-heavy passage that introduces gun-wielding foes Unlocks new firearm (Tanegashima)
4. Climb coastal cliffs Use grappling hook points and narrow paths Environmental traversal mixed with ambushes Scenic views of ocean; new music theme
5. Enter Oshima Coast proper Cutscene introduces new enemy faction and allies regroup Region unlocks on map; fast travel opens gradually Multiple quests and collectibles now available
6. Establish first camp Clear Iwasaki Farmstead or Oiso Fishing Village Serves as your first rest and upgrade base Safe zone + access to blacksmith and bounty board
7. Begin exploration Uncover fogged areas, shrines, and hot springs Encouraged after the first story mission New lore, charms, and crafting materials
8. Prepare for final confrontation Progress main quests (“The Saito Brothers”, “The Storm Breaks”) Major boss battles and emotional story moments Climactic fights and endgame cutscenes

How to unlock and access Oshima Coast

Step 1

Complete the main story quests “The Kitsune” and “The Oni.” These must be finished before you can access the region.

Step 2

Begin “The Saito Brothers” quest (it’s the ninth main quest, just before the final chapter). Follow its objectives to reach the Coast Gatehouse.

Step 3

Progress through the quest, fight through the gatehouse, and unlock access to Oshima Coast after a cutscene. The region will fully open for exploration.

How to achieve full completion on Oshima Coast

  • Unlock all fast travel points by completing major camps and marked activities first.
  • Clear side quests and bounties as you find them, since these sometimes unlock new items or give hints for puzzles.
  • Systematically sweep the map for shrines, collectibles, and optional tales, using your map’s trackable objectives to ensure nothing is missed.
  • Finish the unique mythic quest and solve the Reliquary of Faith puzzle for story and cosmetic rewards.

Oshima coast unlocks opportunities

The Oshima Coast segment of Ghost of Yotei is intense — both narratively and mechanically. You’ll face your toughest enemy forces, solve shrine puzzles critical to charm progression, and tie up the story of Atsu’s vengeance and loss. If you methodically explore, do every side mission, and solve the Reliquary of Faith using the steps above, you’ll emerge with satisfying completion and mastery of the region.