Chapter 4 — The Oni's Apprentice

Chapter 4 of Onimusha: Way of the Sword deepens Musashi's connection to the Oni and unlocks the core supernatural abilities you'll use for the rest of the game. Train with the Oni Clan, learn the Soul Core, trigger your first Oni Awakening, and seal your first Genma rift.

VERIFIED IN FULL GAME — PATCH 1.0 · Mission name, objectives, and order cross-checked against Noobfeed, VideoGamesChronicle, Retrogems, and the PlayStation Blog preview.
TL;DR

Chapter 4 (The Oni's Apprentice) deepens Musashi's connection to the Oni and unlocks key aspects of his supernatural abilities. Estimated 1.5–2 hours.

Estimated Time
1.5 – 2 hours
Main Objective
Train with Oni Clan, seal first rift
Key Encounter
Genma Shaman (first)
Sources: Noobfeed (22-mission list), VideoGamesChronicle chapter list, Retrogems Trophy Guide, PlayStation Blog preview.

1. Chapter Overview

Attribute Value
Chapter 4 — "The Oni's Apprentice"
Estimated Time 1.5 – 2 hours
Difficulty Easy – Medium (tutorial for Oni abilities)
Setting Oni Clan Dojo → field rift site
Story Summary After the battle at Kiyomizu, Musashi trains with the Oni Clan to unlock deeper aspects of the Oni Gauntlet's power. He learns the Soul Core, performs his first Oni Awakening, and seals his first Genma rift.
Key Unlocks Oni Awakening, Soul Core attacks, enhanced Oni Vision
Recommended Level 10 – 12

Chapter 4 is a tutorial-style chapter that introduces the supernatural half of Musashi's kit. The Soul Core, Oni Awakening, and Oni Vision are all explained here, and the field rift sequence is your first taste of how Genma "rifts" tie into the larger Kyoto corruption arc. Expect a friendly difficulty curve and a clean introduction to each new ability before you need it in earnest.

2. Main Objectives

  1. Complete the Oni Clan training sequence — run the dojo gauntlet under Oni Clan supervision.
  2. Learn Soul Core attacks — charge and release a Soul Core strike against a training dummy.
  3. Practice Oni Awakening — trigger your first transformation and use the gauge-based devastation attack.
  4. First field use of Oni Vision — locate the rift in the surrounding area.
  5. Seal your first rift — close the rift and prevent Genma from spawning.
  6. Defeat the first Genma Shaman — a new ranged enemy that drops the rift seal.

3. Walkthrough

Section 1 — Oni Clan Dojo

The Oni Clan welcomes you to a dojo on the outskirts of Kyoto. The dojo is the chapter's training ground and serves as your first introduction to the Oni ability tree.

Section 2 — Field Test (First Rift)

Once training is complete, the Oni Clan sends you to a nearby field where a Genma rift has been detected. This is the chapter's first real combat section.

Tip — Soul Core vs Oni Gauntlet

The Soul Core is best against single tough targets; the Oni Gauntlet is best against groups. Use the Soul Core to delete a Shaman, then sweep the Brutes with the Gauntlet.

Section 3 — Oni Awakening (First Use)

After clearing the first wave, the Oni Clan grants you access to the Oni Awakening transformation. This is the chapter's big cinematic moment.

Section 4 — Genma Shaman Encounter

The rift spawns a new enemy type: the Genma Shaman. Shamans are the ranged counterpart to Genma Brutes and signal the start of mixed-unit combat.

Missables Warning

The Genma Shaman's Talisman Fragment is a one-time drop — if you skip the Shaman or revive him via Soul Core (which deals fatal damage but doesn't drop the fragment reliably), you will miss the rare reward. Confirm the Shaman is fully dead before sealing the rift.

4. Key Items & Collectibles

Item Location Effect
Oni Awakening Manual Dojo (training reward) Unlocks Oni Awakening skill node
Soul Core Unlock Token Dojo (training reward) Activates Soul Core ability in skill tree
Hozuki Pouch x3 Dojo + field path Healing consumables (carry more, die less)
First Genma Note On the Shaman's body Lore collectible — counts toward 23 total Genma Notes (Retrogems)
Lion Dog #4 Hidden corner near the dojo entrance Counts toward 36 total Lion Dogs (Retrogems)
Lion Dog #5 Top of the dojo pagoda (climb the side) Counts toward 36 total Lion Dogs (Retrogems)
Talisman Fragment (rare) Genma Shaman drop Crafting material for Talismans
Hidden Training Reward Complete all dojo sub-objectives +500 yellow souls + Oni Charm

5. Missables

6. Soul Farming Opportunities

Location Enemies Souls / Clear Respawns?
Oni Clan Dojo (training grounds) 8 Genma Brutes ~640 yellow Yes (checkpoint)
Field rift site 4 Genma Brutes + 1 Genma Shaman ~520 yellow + 80 purple Yes (chapter select)

7. Chapter Checklist

Track your Chapter 4 run below. Selections are stored locally in your browser and persist between visits.

8. Next Chapter Preview

Coming Up

Chapter 5 — "Careful What You Wish For"

Musashi investigates a cursed area where desires become dangerous. Watch out for hidden Seventh Stout Pillars and rift mechanics that build on the lessons learned here. New mini-boss, more villagers to save, and the start of the cursed slope sub-arc.

Chapter 5 Walkthrough