The Bokuso Box is a limited-time gadget from the Three Realms Gateway Offering event in Genshin Impact. See how to unlock the Bokuso Box, how to solve Bokuso Box puzzles, how to upgrade it, and how to unlock its Bokuso Arts here!

Three Realms Gateway Opening Guides
Bokuso Box		Locked Waypoints		Statue of Vassals
Ice & Thunder		Sentou Trials		Oathsworn Eye
Light Realm Sigils			Light Realm Cores
Tokoyo Legumes			Aphotium Ores

How to Get the Bokuso Box

Obtained from Three Realms Gateway Quest

Play Through Three Realms Gateway Quest: The Eve

The Bokuso Box can be obtained by doing the first event story quest Three Realms Gateway Offering: The Eve. Check out our guide for a walkthrough on completing the quest!

Three Realms Gateway Offering Event Guide

How to Use the Bokuso Box

All Uses in Three Realms Gateway Offering

All Uses of Bokuso Box
Explore Three Realms Gateway Offering with Corrosion Complete Bokuso Box Puzzles Disperse Darkness from Enemies

Corrosion Resistance to Explore Enkanomiya

The Bokuso Box stores energy which allows traveling within the corrosion affected areas. The corrosion accumulates over time and depletes the Bokuso Box's energy.

You can use 6 Energy from the Bokuso Box at a time!

Corrosion Index and Bokuso Box

The bigger the gap of the corrosion index of the area and the corrosion resistance of the Bokuso Box, the faster the corrosion will accumulate. Higher corrosion index will also decrease characters' Physical and Elemental resistances, and lower the damage dealt.

Corrosion Mechanic Explained

Complete Bokuso Box Puzzles

Using a portion of energy from the Bokuso Box will dispel the darkness encroaching from puzzles such as Treasure Chests, Challenge Arenas, and Items you can harvest in the Three Realms Gateway Offering map.

You can also use the Bokuso Box to complete Light Guiding Ceremony puzzles, Illusory Platforms and Stairways!

Light Guiding Ceremony Puzzle Guide

Disperse Darkness from Enemies

Some enemies will be enveloped with an aura of darkness, which means that they can't be defeated by ordinary means. To defeat them you must use a portion of the energy from the Bokuso Box to deal DMG!

How to Replenish Bokuso Box Energy

Recuperate at the Statue of the Vassals

Similiar to the healing at Statue of the Seven, you can remove the accumulated corrosion and refill the energy of the Bokuso Box at the Statue of the Vassals in Dainichi Mikoshi.

Simply click on Recuperate to replenish energy to your Bokuso Box! Recuperating will also cleanse your Corrosion Index.

Statue of the Vassals Guide

Capture Coral Butterflies or Touch Light Conches

While exploring, you can also replenish the Bokuso Box's energy by capturing Coral Butterflies or touching Light Conches found in the wild.

How to Level Up the Bokuso Box

Offer Light Realm Sigils

Offering Light Realm Sigils to the Statue of the Vassals will increase the level of the Bokuso Box by one, giving you increased resistance to Corrosion, Energy, and other benefits!

Opening chests, unlocking teleport waypoints, and completing event objectives gives you the necessary Light Realm Sigils to level the Bokuso Box!

How to Get Light Realm Sigils

Total Light Realm Sigils Needed

You need a total of 1,500 Light Realm Sigils to level up your Bokuso Box from Level 1 to Level 15! Note that for every 5 levels, the required Light Realm Sigils increases by 20.

Spam Sentou Trials to Get Sigils

You can get an infinite amount of Light Realm Sigils by spamming Sentou Trails, then recuperating at the Statue of the Vassals to make them respawn! We recommend spamming the the second or the third sets of trials to farm Sigils!

Sentou Trial Guide

List of All Bokuso Box Upgrades

Lvl.	Sigils	Bokuso Box Upgrades
1	80	• Corrosion Resistance ↑ 6 • Will mark nearby Tokoyo Legumes and Aphotium Ore on the minimap
2	80	• Corrosion Resistance ↑ 12 • Using the Bokuso Box will mark treasure chests and challenges in a small AoE on the minimap
3	80	• Corrosion Resistance ↑ 18 • Max Bokuso Box Energy ↑ 330
4	80	• Corrosion Resistance ↑ 24
5	80	• Corrosion Resistance ↑ 30
6	100	• Corrosion Resistance ↑ 51 • The Bokuso Box is now able to disperse greater darkness
7	100	• Corrosion Resistance ↑ 57 • Max Bokuso Box Energy ↑ 360
8	100	• Corrosion Resistance ↑ 63. • After the Bokuso Box is used on opponents, their Physical RES and All Elemental RES will be decreased by 10% for 30s
9	100	• Corrosion Resistance ↑ 69
10	100	• Corrosion Resistance ↑ 75
11	120	• Corrosion Resistance ↑ 96 • The Bokuso Box is now able to disperse greatest darkness
12	120	• Corrosion Resistance ↑ 102. • Max Bokuso Box Energy ↑ 390.
13	120	• Corrosion Resistance ↑ 108 • After the Bokuso Box is used on opponents, their Physical RES and All Elemental RES will be decreased by 20% for 30s
14	120	• Corrosion Resistance ↑ 114 • The Bokuso Box can now directly mark the locations of Three Realms Gateway Offering treasure chests and challenges (50 maximum at one time)
15	120	• Corrosion Resistance ↑ 120

How to Unlock Bokuso Arts

Use Light Realm Cores

One Light Realm Core is required to upgrade the Bokuso Arts from the Statue of the Vassels in the Three Realms Gateway Offering Event.

These can be obtained from Luxurious Chests around the event map!

How to Get All Light Realm Cores

List of All Bokuso Box Upgrades

Lvl	Bokuso Box Upgrades
1	Blessing of the Tortoise • Equipping the Bokuso Box grants your party members 30% increased DEF and 20% increased Max HP.
2	Ward of Obscurity • Equipping the Bokuso Box grants your party members 25% increased Elemental Burst DMG.
3	Boon of the Whalehunter • Equipping the Bokuso Box grants your party members who wield Swords, Claymores, and Polearms 30% increased Normal, Charged, and Plunging Attack DMG.
4	Blessing of the Runebow • Equipping the Bokuso Box grants your party members who wield Bows and Catalysts 15% Normal ATK SPD.
5	Grace of Conductivity • Equipping the Bokuso Box grants your party members increased Electro-Charged, Superconduct, Overloaded, and Electro Swirl DMG.
6	Marathon Guerilla • Equipping the Bokuso Box grants your party members 15% decreased Stamina consumption and 20% increased Stamina Regeneration.

Bokuso Box Basic Information

Effects and Basic Info

Bokuso Box	Rarity	4
	Type	Gadgets
	Effect	None

Use this to clear a certain area in Enkanomiya of the darkness influence.
The name Bokuso is formed from boku, meaning to draw near to what is good, and so, meaning to shun that which is tainted.

Genshin Impact Related Guides

Three Realms Gateway Offering Guide

Quest Guides for Three Realms Gateway Offering

Aphotic Diffusal Quest Chain Guide
Three Realms Gateway Offering: The Eve	Three Realms Gateway Offering: Part I
Three Realms Gateway Offering: Part II	Three Realms Gateway Offering: Part III
Three Realms Gateway Offering: Aftermath	The Bunkoku Enigma

Features, Puzzles, and Challenges in Three Realms Gateway Offering

Helpful Event Guides
How to Use the Bokuso Box	How Corrosion Works
How to Unlock Waypoints	Statue of the Vassals Uses
Light Realm Sigil Sources	Light Realm Core Locations
Tokoyo Legume Locations	Aphotium Ore Locations
Sentou Trial Guides	Call of Ice & Thunder
Light Mirror Puzzle Guide	How to Get Husk Gems

Event-Exclusive Rewards

Three Realms Gateway Offering Items
Oathsworn Eye	Ointment of Sight

Other Genshin Impact Events

List of Events