Bosses

Overview

Boss encounters in Beast of Reincarnation fall into three groups. The Nushi are the great beasts that rule regions of the world and whose powers Emma captures as she travels. The paired fights set Emma and Koo against a human opponent fighting alongside their own creature companion. The Malefacts appear as recurring encounters that escalate across the campaign.

Most bosses are fought more than once. Rather than appearing in a single chapter and being retired, several return later at substantially higher levels with expanded movesets, which is why the same name shows up multiple times in the table below. Chapter numbering follows the campaign order set out under Main Story Chapters.

Boss Roster

Levels indicate the boss's level at each encounter, so a boss listed at several levels is fought that many times. Elemental weaknesses determine which blade elements and which arrow or bolt types are most effective; equipment options are covered under Weapons.

Where They Are Fought

Encounters are spread across five broad regions. The early game stays in the Kanto region, the middle stretch climbs into mountainous territory, and the late game moves through drowned and wasteland areas before reaching the Capital.

The Nushi

Six Nushi carry the "X's End" achievement pattern that marks their defeat: Rangifer, Lacerta, Taurus, Corvus, Ursa, and Erymanth. Their names follow Latin animal and constellation terms, matching the creature each one is built around. Rangifer is the stag encountered first, and Ursa is the bear fought deep into the wasteland stretch. Each defeat feeds into the Flower System that tracks Emma's progress.

Paired Encounters

Two fights mirror Emma and Koo's own structure by pitting them against a human paired with a creature companion. Kunai fights alongside Kirin, and Shidou fights alongside Nue. Both pairs are fought more than once, and both are among the highest-level encounters in the game. The final Kunai and Kirin fight sits at level 49, immediately before the endgame.

Recurring Malefacts

The Nue Malefact is fought three times at rising levels, first during a flashback sequence and later as a standing encounter. The Crimson Malefact appears once, late, and is the only boss weak to water. These encounters connect to the wider Malefacts bestiary rather than to the Nushi progression.

Other Encounters

The Door Golem is an early non-Nushi fight, weak to bind and acid effects, and drops scrap metal on defeat. It belongs to the broader Golems enemy family rather than to the Nushi line.

Skills Unlocked by Boss Defeats

Most boss kills hand over a piece of the toolkit rather than just loot. A first defeat usually grants a Nushi Skill, the second an active pair (one Bloom Art for Koo plus a Blade Art for Emma), and a third the upgraded versions. Skills still cost Skill Points to unlock in the tree; the boss defeat is what makes them purchasable.

Two encounters give nothing. The Crimson Malefact is a pure roadblock with no skill attached, and the first Kunai and Kirin fight in Chapter 8 leaves the reward until the rematch in Chapter 12.

Post-Launch Changes

One encounter changed shape after release. The August 24 patch converted the boss battle in The Great Wall Terraces into an event battle, which moves it from a free-standing fight the player walks into to one the game stages, so a route written before that patch may describe the approach differently than the current build plays it.

Two changes apply across the roster rather than to a single fight. Camera presentation during boss battles was adjusted, and a bug where certain Nushi attacks failed to connect was fixed, which makes some fights read as slightly harder than they did at launch because attacks that used to whiff now land. Boss attack visual effects were also optimised. Earlier patches had already rebalanced boss difficulty across all three settings and adjusted combat behaviour for some bosses, so a build that cleared a fight comfortably on release is not guaranteed to feel the same today.