Gameplay:Koromaru

This page covers gameplay information of Koromaru across the Persona series.

Social Link (P3P)

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	Reason: Missing prompts/responses and hangout dates. Data based on the JP P3P guidebook. If something was wrong in the guide, then it's wrong here too.

In Persona 3 Portable, Koromaru replaces Yuko as the Strength Social Link for the female protagonist. Koromaru's Social Link takes place at night when the female protagonist takes him for a walk. Typically, he wants to be taken for a walk on Monday, Wednesday, Thursday, Saturday, and also on days off school. If he is ready to rank up, then the rank up event will occur. If he is not ready to rank up, he has no hangout events like other characters do. Instead, the female protagonist gains 10 points with Koromaru whenever she walks him. Occasionally, the two will come across other Social Link characters and the female protagonist will also get Social Link points for those characters.

Availability

Main article: Walking Koromaru

Rainy Weather
Monday		Tuesday		Wednesday		Thursday		Friday		Saturday		Sunday
Day	Night	Day	Night	Day	Night	Day	Night	Day	Night	Day	Night	Day	Night
✘	✔	✘	✘	✘	✔	✘	✔	✘	✘	✘	✔	✘	✘

Koromaru can be found at night time at the Iwatodai Dorm. He is also available when school is on holiday.

Ranks

Strength Ranks
Rank	Requirement(s)
1	August 15th, requires Dog Food
2	0 points
3	15 points
4	15 points
5	20 points
6	20 points
7	30 points
8	25 points
9	30 points
10	50 points

Rank Up Events

Rank 1Rank 2Rank 3Rank 4Rank 5Rank 6Rank 7Rank 8Rank 9Rank 10

The female protagonist can begin Koromaru's Social Link on August 15th. This requires getting Dog Food from rank 1 of Fuuka's Social Link.

Strength Rank 2
Response	Base PointsNumber of rank points earned with response	Notes
1: Prompt
Option	+0	—
Option	+0	—
2: Prompt
Option	+0	—
Option	+5	—

Strength Rank 3
Response	Base PointsNumber of rank points earned with response	Notes
1: Prompt
Option	+5	—
Option	+0	—
2: Prompt
Option	+5	—
Option	+5	—
3: Prompt
Option	+0	—
Option	+0	—

Strength Rank 4
Response	Base PointsNumber of rank points earned with response	Notes
1: Prompt
Option	+0	—
Option	+0	—
2: Prompt
Option	+0	—
Option	+0	—
3: Prompt
Option	+0	—
Option	+0	—
4: Prompt
Option	+5	—
Option	+0	—
5: Prompt
Option	+0	—
Option	+0	—
6: Prompt
Option	+0	—
Option	+0	—
7: Prompt
Option	+0	—
Option	+0	—
8: Prompt
Option	+0	—
Option	+0	—

Strength Rank 5
Response	Base PointsNumber of rank points earned with response	Notes
1: Prompt
Option	+0	—
Option	+5	—
2: Prompt
Option	+0	—
Option	+5	—
Option	+0	—

Strength Rank 6
Response	Base PointsNumber of rank points earned with response	Notes
1: Prompt
Option	+0	—
Option	+0	—
2: Prompt
Option	+0	—
Option	+0	—
3: Prompt
Option	+5	—
Option	+0	—

Strength Rank 7
Response	Base PointsNumber of rank points earned with response	Notes
1: Prompt
Option	+0	—
Option	+0	—
2: Prompt
Option	+0	—
Option	+0	—
3: Prompt
Option	+0	—
Option	+0	—
4: Prompt
Option	+0	—
Option	+0	—
5: Prompt
Option	+5	—
Option	+0	—
Option	+5	—

Strength Rank 8
Response	Base PointsNumber of rank points earned with response	Notes
1: Prompt
Option	+0	—
Option	+5	—
2: Prompt
Option	+0	—
Option	+5	—
Option	+0	—

Strength Rank 9
Response	Base PointsNumber of rank points earned with response	Notes
1: Prompt
Option	+0	—
Option	+0	—
2: Prompt
Option	+5	—
Option	+5	—

	This section is a stub. You can help Megami Tensei Wiki by expanding it.
	Reason: P3P guide didn't have rank 10.

Link Episodes (P3R)

Koromaru, like every other male party member in Persona 3 Reload, has 5 Linked Episodes available instead of a Social Link. Completion of all 5 Linked Episodes unlocks Byakko for fusion.

Episode	Availability	Location	Effects
1	8/22 - 1/30	Outside the dorm, afternoon	Charm +2
2	9/4 - 1/30	Outside the dorm, afternoon	Courage +2
3	9/4 - 1/30	Outside the dorm, afternoon	Koromaru's Persona's Speed +2
4	9/4 - 1/30	Outside the dorm, afternoon	Courage +2
5	1/5 - 1/30	Outside the dorm, afternoon	Koromaru's Collar (Allows the fusion of Byakko)

Persona 3

Koromaru fights with knives in battle which inflict Slash damage. He is very agile in battle and rarely misses attacks and is generally harder to hit. His Persona, Cerberus, uses Mudo and Agi skills. Among the party members, Koromaru has the highest Agility, but his Strength, Magic, and Endurance are slightly below-average.

Stats

	Name Level Cerberus 34	Strength 20 Magic 21 Endurance 20 Agility 29 Luck 19
Location Koromaru's Persona
Arcana Shuffle Time Inheritance Heart Item Strength — Dark —
Resistances — — — NulNull — — — WkWeak NulNull — — — — — — — — —
Skills Skill Cost Description Level Agilao 6 SP Deals medium Fire damage to 1 foe. Innate Mudo 6 SP Darkness chance of instant kill, 1 foe. Innate Evil Touch 5 SP Instills Fear in 1 foe. Innate Maragion 12 SP Deals medium Fire damage to all foes. 38 Counterstrike — Counter physical attacks (med odds). 40 Mamudo 12 SP Darkness chance of instant kill, all foes. 42 Agidyne 12 SP Deals heavy Fire damage to 1 foe. 45 Fire Boost — Strengthens Fire attacks. 48 Evil Smile 10 SP Instills Fear in all foes. 50 High Counter — Counter physical attacks (high odds). 52 Mudoon 12 SP Darkness instant kill, 1 foe (high odds). 56 Mudo Boost — Increases success rate of Darkness magic. 60 Maragidyne 24 SP Deals heavy Fire damage to all foes. 67 Mamudoon 24 SP Darkness instant kill, all foes (high odds). 71 Fire Amp — Greatly strengthens Fire attacks. 77

Persona 3 FES

Stats

The JourneyThe AnswerEnemy

	Name Level Cerberus 34	Strength 20 Magic 21 Endurance 20 Agility 29 Luck 19
Location Koromaru's Persona
Arcana Shuffle Time Inheritance Heart Item Strength — Dark —
Resistances — — — NulNull — — — WkWeak NulNull — — — — — — — — —
Skills Skill Cost Description Level Agilao 6 SP Deals medium Fire damage to 1 foe. Innate Mudo 6 SP Darkness chance of instant kill, 1 foe. Innate Evil Touch 5 SP Instills Fear in 1 foe. Innate Maragion 12 SP Deals medium Fire damage to all foes. 38 Counterstrike — Counter physical attacks (med odds). 40 Mamudo 12 SP Darkness chance of instant kill, all foes. 42 Agidyne 12 SP Deals heavy Fire damage to 1 foe. 45 Fire Boost — Strengthens Fire attacks. 48 Evil Smile 10 SP Instills Fear in all foes. 50 High Counter — Counter physical attacks (high odds). 52 Mudoon 12 SP Darkness instant kill, 1 foe (high odds). 56 Mudo Boost — Increases success rate of Darkness magic. 60 Maragidyne 24 SP Deals heavy Fire damage to all foes. 67 Mamudoon 24 SP Darkness instant kill, all foes (high odds). 71 Fire Amp — Greatly strengthens Fire attacks. 77

	Name Level Cerberus 34	Strength 20 Magic 21 Endurance 20 Agility 29 Luck 19
Arcana Shuffle Time Inheritance Heart Item Strength — Dark —
Resistances — — — NulNull — — — WkWeak NulNull — — — — — — — — —
Skills Skill Cost Description Level Agilao 6 SP Deals medium Fire damage to 1 foe. Innate Sukukaja 6 SP Increases 1 ally's Hit/Evasion rate. Innate Mudoon 12 SP Darkness instant kill, 1 foe (high odds). Innate Counter — Counter physical attacks (low odds). Innate Maragion 12 SP Deals medium Fire damage to all foes. 34 Fire Boost — Strengthens Fire attacks. 39 Mamudo 12 SP Darkness chance of instant kill, all foes. 42 Agidyne 12 SP Deals heavy Fire damage to 1 foe. 45 Mamudoon 24 SP Darkness instant kill, all foes (high odds). 49 Masukukaja 12 SP Increases party's Hit/Evasion rate. 50 High Counter — Counter physical attacks (high odds). 52 Mudo Boost — Increases success rate of Darkness magic. 60 Maragidyne 24 SP Deals heavy Fire damage to all foes. 67 Fire Amp — Greatly strengthens Fire attacks. 75

	Name Level Cerberus 34	Strength Magic Endurance Agility Luck
Arcana Shuffle Time Inheritance Heart Item Strength — —
Resistances — — — NulNull — — — NulNull NulNull — — — — — — — — —
Skills Skill Cost Description Level

Persona 3 Portable

Stats

	Name Level Cerberus 34	Strength 20 Magic 21 Endurance 20 Agility 29 Luck 19
Location Koromaru's Persona
Arcana Shuffle Time Inheritance Heart Item Skill Card Strength — Dark — —
Resistances — — — NulNull — — — WkWeak NulNull — — — — — — — — —
Skills Skill Cost Description Level Agilao 6 SP Deals medium Fire damage to 1 foe. Innate Mudo 6 SP Darkness chance of instant kill, 1 foe. Innate Evil Touch 5 SP Instills Fear in 1 foe. Innate Maragion 12 SP Deals medium Fire damage to all foes. 38 Counterstrike — Counter physical attacks (med odds). 40 Mamudo 12 SP Darkness chance of instant kill, all foes. 42 Agidyne 12 SP Deals heavy Fire damage to 1 foe. 45 Fire Boost — Strengthens Fire attacks. 48 Evil Smile 10 SP Instills Fear in all foes. 50 High Counter — Counter physical attacks (high odds). 52 Mudoon 12 SP Darkness instant kill, 1 foe (high odds). 56 Mudo Boost — Increases success rate of Darkness magic. 60 Maragidyne 24 SP Deals heavy Fire damage to all foes. 67 Mamudoon 24 SP Darkness instant kill, all foes (high odds). 71 Fire Amp — Greatly strengthens Fire attacks. 77

Persona 3 Reload

Koromaru is capable of using Hound of Hades‎ and Power Howling, two Theurgy skills introduced in Persona 3 Reload.

Stats

CerberusCerberus (Episode Aigis)Cerberus (Enemy)

	Name Level Cerberus 35	Strength 25 Magic 24 Endurance 21 Agility 29 Luck 19
Location Koromaru's Persona
Arcana Shuffle Time Inheritance Strength — Dark
Resistances — — — NuNull — — — WkWeak NuNull ×1 ×1 ×1 ×1 ×1 ×1 ×1 ×1 ×1
Skills Skill Cost Description Level Eiga 8 SP Deals medium Dark damage to 1 foe. Innate Maeiga 16 SP Deals medium Dark damage to all foes. Innate Mamudo 12 SP Low chance of Dark instakill to all foes. Innate Maragion 14 SP Deals medium Fire damage to all foes. Innate Revolution 14 SP Greatly increases all allies and foes' critical rate for 3 turns. Innate Mudoon 14 SP Medium chance of Dark instakill to 1 foe. 36 Getsu-ei 13% HP Medium Slash damage to 1 foe. More damage when closer to a full moon. 39 Virus Breath 25 SP Medium Almighty damage with medium chance of Poison to all foes. 43 Eigaon 15 SP Deals heavy Dark damage to 1 foe. 46 Soul Shift — When Shifting to an ally, that ally recovers 5 SP. 50 Mamudoon 26 SP Medium chance of Dark instakill to all foes. 53 Maragidyne 24 SP Deals heavy Fire damage to all foes. 56 Tempest Slash 14% HP Deals weak Slash damage to 1 foe (1-4 hits). 60 Masukukaja 24 SP Increases party's Accuracy/Evasion for 3 turns. 63 Maeigaon 25 SP Deals heavy Dark damage to all foes. 67 Fire Amp — Automatically strengthen Fire skills by 50%. Can stack. 70 Dark Amp — Automatically strengthen Dark skills by 50%. Can stack. 73 Debilitate 36 SP Decreases 1 foe's Attack, Defense, and Accuracy/Evasion for 3 turns. 77
Theurgy Skill Skill Cost Description Persona Hound of Hades Theurgy Koromaru's Theurgy; Deals severe Dark damage to 1 foe, ignoring resistances. Cerberus Power Howling Theurgy Koromaru's second Theurgy; Next physical attack will deal more than double the damage for all allies. Cerberus

	Name Level Cerberus 31	Strength 21 Magic 21 Endurance 18 Agility 26 Luck 16
Arcana Shuffle Time Inheritance Strength — —
Resistances — — — NuNull — — — WkWeak NuNull ×1 ×1 ×1 ×1 ×1 ×1 ×1 ×1¼×1.25 ×1
Skills Skill Cost Description Level Eiga 8 SP Deals medium Dark damage to 1 foe. Innate Mamudo 12 SP Low chance of Dark instakill to all foes. Innate Fatal End 10% HP Deals medium Slash damage to 1 foe. Low chance of inflicting Fear. Innate Swift Strike 15% HP Deals weak Strike damage to all foes (1-2 hits). Innate Sukukaja 8 SP Increases 1 ally's Accuracy/Evasion for 3 turns. Innate Maragion 14 SP Deals medium Fire damage to all foes. 33 Revolution 14 SP Greatly increases all allies and foes' critical rate for 3 turns. 36 Maeiga 16 SP Deals medium Dark damage to all foes. 40 Mudoon 14 SP Medium chance of Dark instakill to 1 foe. 44 Virus Breath 25 SP Medium Almighty damage with medium chance of Poison to all foes. 47 Tempest Slash 14% HP Deals weak Slash damage to 1 foe (1-4 hits). 51 Mamudoon 26 SP Medium chance of Dark instakill to all foes. 55 Eigaon 15 SP Deals heavy Dark damage to 1 foe. 58 Soul Shift — When Shifting to an ally, that ally recovers 5 SP. 62 Maragidyne 24 SP Deals heavy Fire damage to all foes. 66 Masukukaja 24 SP Increases party's Accuracy/Evasion for 3 turns. 70 Maeigaon 25 SP Deals heavy Dark damage to all foes. 73 Fire Amp — Automatically strengthen Fire skills by 50%. Can stack. 76 Dark Amp — Automatically strengthen Dark skills by 50%. Can stack. 79 Debilitate 36 SP Decreases 1 foe's Attack, Defense, and Accuracy/Evasion for 3 turns. 82
Theurgy Skill Skill Cost Description Persona Hound of Hades Theurgy Koromaru's Theurgy; Deals severe Dark damage to 1 foe, ignoring resistances. Cerberus Power Howling Theurgy Koromaru's second Theurgy; Next physical attack will deal more than double the damage for all allies. Cerberus

	Name Level Cerberus	Strength Magic Endurance Agility Luck
Arcana Shuffle Time Inheritance Strength — —
Resistances — — — — — — — — — ×1 ×1 ×1 ×1 ×1 ×1 ×1 — ×1
Skills Skill Cost Description Level
Theurgy Skill Skill Cost Description Persona Hound of Hades Theurgy Koromaru's Theurgy; Deals severe Dark damage to 1 foe, ignoring resistances. Cerberus Power Howling Theurgy Koromaru's second Theurgy; Next physical attack will deal more than double the damage for all allies. Cerberus

Characteristics

By doing activities with Koromaru at the dorm, he can unlock additional an passive skill called a Characteristic. By doing a different activity with him, his Characteristic will upgrade into a stronger version.

Characteristic	Description	Effect	Unlock
Auto Sukunda	Lowers Accuracy/Evasion of 1 random foe for 3 turns when a battle starts.		1 of 2 dorm activities, 3 times
Auto Masukunda	Lowers Accuracy/Evasion of all foes for 3 turns when a battle starts.		Other dorm activity, 3 times

Persona 4 Arena Ultimax

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Moveset

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Persona Q: Shadow of the Labyrinth

Stats

CerberusCerberus (Evolved)

	Name Level HP SP Cerberus 1	Strength 7 Magic 7 Endurance 6 Agility 8 Luck 6
Arcana Type Strength
Resistances — — — — — — — Weak Null
Skills Skill Cost Description Level

	Name Level HP SP Cerberus Evolved	Strength Magic Endurance Agility Luck
Arcana Type Strength
Resistances — — — — — — — — —
Skills Skill Cost Description Level

Persona Q2: New Cinema Labyrinth

Stats

CerberusCerberus (Evolved)

	Name Level HP SP Cerberus 26 203 59	Strength 35 Magic 34 Endurance 29 Agility 39 Luck 18
Arcana Type Strength
Resistances — StrStrong — — — — — WkWeak NulNull
Skills Skill Cost Description Level
Unison Skills Skill Cost Description

	Name Level HP SP Cerberus (Evolved)	Strength Magic Endurance Agility Luck
Arcana Type Strength
Resistances — — — — — — — — —
Skills Skill Cost Description Level
Unison Skills Skill Cost Description

Notes

General

• "Block 6: Commu", Persona 3 Portable Official Perfect Guide, Famitsu. Published by Enterbrain (2010). Japanese. p. 302-382. ISBN-13: 978-4047262935.
• "Chapter 6: Commu", Persona 3 Reload Official Complete Guide, Dengeki. Published by Kadokawa (2024). Japanese. p. 242-278. ISBN-13: 978-4047337176.