Symbols

Some weapons/armour have "symbols" which indicate the effect it has. When you synthesise a weapon with an "Empty" symbol with a weapon which has an effect symbol, the weapon takes that effect. For example, synthesising a sword with an empty symbol with the Matsukaze sword (which has the "Endurance" symbol) will fill the empty symbol of the base weapon with the "Endurance" effect from the Matsukaze symbol. This is good for customising weapons/armour to give it the effects you want.

Above is an example of a sword with a symbol

Above is an example of a sword that had an empty symbol and was synthesised with a sword with an effect symbol

Below are the symbols in the game:

Enhancement (Red) Symbols

Symbol Effect Equipment that have it

Comrade

In the battle dungeon, the corporal's soldier ability is enhanced Swords: Himetsuru Hitomoji, Otenta
Greatswords: Yagyu Greatsword

Growth

Increases Experience acquisition Swords: Dojisetsu
Pistols: Dragon Hawk
Spears: Gorinsai
Armour: Flower Design Headband

Spirit

Makes it easier to fill the heat gauge Swords: Sendai Kanemaru, Masamune
Pistols: Meikyo, Nichirin
Spears: Houten Spear
Armour: Symbol of Fighting Spirit

Accumulate

Fire a charged shot when you hold down the square button Pistols: Heart Beat, Soul Beat

Attribute

Enhances the effect of attribute attacks (blue symbols). For pistols, it enhances the effect of special attribute bullets Pistols: Sakurabana, Shidarezakura
Spears:
Large Brush

Multi

The more enemies you are fighting, the more powerful your attacks become Swords: Senninsetsu
Greatswords: Large Saw

Speed

Enhances rapid firing speed Pistols: Kazekumo, Kogarashi, Hayate
Cannon: Mechanical Cannon

Blink

Enhances rapid firing speed a lot Pistols: Tsujikaze

Two

Fires 2 bullets with each shot Pistols: Double Strike, Double Flash

Attack

Increases Hand-to-Hand Fighting Style attack power by 30% Armour: Iron Gauntlet, War Fist Sarashi

Extreme

Increases Hand-to-Hand Fighting Style attack power by 50% Armour: Enraged Position

Drunk

Attack power and heat actions are enhanced when intoxicated Armour: Red Headband

Grab

Makes it difficult to break free from a hold Armour: Symbol of Super Strength

Enthusiast

Attack power increases as health decreases Armour: Symbol of Adversity

Special

Reduces heat gauge consumption when using special techniques Armour: Symbol of the Divine Dragon

Smash

Makes it easier to break an enemy's guard Swords: Tepposetsu, Higesetsu, Onimaru
Pistols: Sword Crasher, Spirit Smasher
Greatswords: Large Hammer, Tenchisai

Aim

Makes it easier to hit enemies from a distance Pistols: Peashooter

Profit

Enemies are more likely to drop items Swords: Golden Sword
Pistols: Golden Gun

War

The heat gauge automatically fills Armour: War God Amulet

Pilgrimage

The effects of praying at shrines are doubled Armour: Double-Pilgrimage Talisman

Dharma

Increases Dharma acquisition Armour: Dharma Hood

 

Modification (Green) Symbols

Symbol Effect Equipment that have it

Blow

Enemies are blown away when you hit with a big attack Swords: Kijo Moji, Hidari Moji
Spears:
Choukipaiko, Kagerosetsu
Cannon: Country Destroyer
Armour: Reppu

Penetration

Bullets penetrate armour Pistols: Armor Breaker, Raging Bullet

Thorn

Bestows the Blade attribute onto hand-to-hand attacks Armour: Concealed Blade

Encounter

Increases enemy encounter rate Armour: Koi Amulet

Calm

Stops the heat gauge from rising Armour: Heijoshin Towel

Tiger

Changes the circle attack function Swords: Torasetsu

Flower

Changes the circle attack function Swords: Kiku Hitomoji

Lineage

Changes the circle attack function Swords: Ujishige

Dragon

Slashing attacks cause a big wave Swords: Yumeryusai

 

Attribute (Blue) Symbols

Symbol Effect Equipment that have it

Rust

Makes it easier to break enemy armour Swords: Suijinsetsu, Murasame

Fire

Fire attacks Swords: Shiranuhi, Okanehira
Greatswords: Bonbori
Cannon: Fenghuang

Wind

When attacking, surrounding enemies are blown away Swords: Sakurafubuki, Morning Storm
Spears:
White Dragon
Greatswords: Decorative Hagoita

Electric

Electric attacks Swords: Hotarumaru, Kaminarusetsu
Spears: Electric Stinger
Cannon: Electromagnetic Cannon

Light

Stuns enemies with light Swords: Tenkomaru, Mikazuki Munechika, Shining Konnyaku, Sohaya no Tsurugi

Poison

Poison attacks Swords: Juzumaru, Futsunotama
Armour: Snake

Enchantment

Absorb enemy health when you attack Swords: Tokagemaru, Muramasa, Hanamori
Pistols: Non-Flying Bird, Spring in Full Bloom
Greatswords: Nenekirimaru

 

Protection (Yellow) Symbols

Symbol Effect Equipment that have it

Bullet

Enables you to defend against guns Armour: Sacred Tree Gauntlet

Blade

Enables you to defend against bladed weapons Armour: Steel Gauntlet

Safeguard

Increases resistance to attribute attacks Armour: Hakuou, Divine Raiment

Reciprocation

Some of the damage you receive is bounced back against the opponent Spears: Large Chikuwa
Armour:
Purgatory, Thorny Spider

Sword

Reduces the damage you receive from sword attacks Armour: Blade-Proof Breastplate

Gun

Reduces the damage you receive from gun attacks Armour: Gun Reflect

Extinguish

Fire has no effect Armour: Fireman's Breastplate

Medicine

Poison has no effect Armour: Medical Herb Sarashi

Awareness

Never become dizzy Armour: Embroidery Headband

Stillness

Health restores when you stand still Armour: God Charm

Endurance

Reduces the amount of damage you receive Swords: Matsukaze, Kogitsunemaru, Kogarasumaru, Lion King
Pistols: Nio, Kongo
Greatswords: Battleaxe
Armour: Brawler's Sarashi, Symbol of Will Power

Sober

Increases the speed at which you sober up Armour: Sobering Hood

Pot

Alerts you to pot locations with a sound

(works like the locker key locator thing in Yakuza 4)

Armour: Pot Sound Opportunity

Money

You gain money as you walk around Armour: Gion Hood, Ebisu Hat

Invitation

Substory locations are indicated on the map Armour: Inviting Hat

Enemy

Reveals enemy locations on the map Armour: Rogue's Kabuto

Danger

Heat gauge automatically rises when you are at critical health Armour: Haisui Talisman