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Shinjuku Island

Late game

Shinjuku Island is a late game island in Sailor Piece. High-density cursed conflict. It is accessible to all players regardless of level. The island hosts 2 notable NPCs. 2 bosses can be found or summoned here.

NPCs on Shinjuku Island

NPCFunction
Strongest in History TrainerUnlocks a fighting style or weapon
Strongest of Today TrainerUnlocks a fighting style or weapon

Bosses

Boss
Strongest in History
Strongest of Today

Hidden Collectibles

  • Slime Puzzle piece: Near broken buildings and strange tree on far side
  • Hogyoku Fragment: Upper city path

What to Do on Shinjuku Island

  • Unlock new weapons or fighting styles from trainers
  • Farm Strongest in History, Strongest of Today for materials, titles, and accessories
  • Farm normal enemies for rerolls, chests, keys, and crafting materials

How to Get Here

Use a purple teleport portal on any island and select Shinjuku Island from the destination list.

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