Junpei and Koromaru Weakness and How to Beat

Junpei and Koromaru are Story bosses in Persona 3 Reload's (P3R) Episode Aigis DLC. Check out how to beat Junpei and Koromaru, their location, weaknesses and resistances, as well as the recommended party and Personas for defeating Junpei and Koromaru.

Junpei and Koromaru Boss Overview

Boss Overview
Location: Colosseo Purgatorio Recommended Level: 90+

Junpei and Koromaru Weaknesses and Resistances

Junpei has no Weaknesses

Slash				Strike				Pierce
Resist				Normal				Normal
Fire			Ice			Electricity			Wind
Null			Normal			Normal			Normal
Light						Dark
Normal						Normal

In addition to having no weaknesses, Junpei resists Slash and nulls Fire. Avoid using Severe-tier moves like Inferno or Vorpal Blade against Junpei.

Koromaru has no Weaknesses

Slash				Strike				Pierce
Normal				Normal				Normal
Fire			Ice			Electricity			Wind
Null			Normal			Normal			Normal
Light						Dark
Normal						Null

Koromaru nulls both Fire and Dark, while having no weaknesses. Use spells like Diamond Dust or Thunder Reign to defeat Koromaru fast.

How to Beat Junpei and Koromaru

The following tips can help you beat Junpei in battle.

• Bring Abaddon to Resist Their Atacks
• Defeat Koromaru First
• Take Advantage of Metis' Support Skills

Bring Abaddon or Mara to Resist Their Attacks

Abaddon is the best Persona to bring into this fight. It drains both Junpei and Koromaru's Physical attacks and nullifies all Fire attacks from both.

Additionally, it's best to fuse Abaddon rather than getting it through Shuffle Time since its base kit doesn't come with good skills. This way, you can add more useful skills like Thunder Reign and Shock Boost.

Lucifer and Masakado are also Great Choices

If you prefer higher-level Personas, consider adding Masakado or Lucifer to your team. Both are also great choices since Junpei and Koromaru can't do much to them and come with strong kits that could be useful in this battle.

Defeat Koromaru First

Junpei and Koromaru will both be offensive threats in this fight, but Koromaru is the bigger threat due to his variety of skills. He can inflict Fear with Evil Smile, use Mudoon for potential instant kills, and deal heavy damage with Maragidyne and Blade of Fury.

Due to this, it's best to prioritize Koromaru first since his skills can pose a significant threat to your team. Junpei can be safely left for last as he only mainly uses Agidyne and Tempest Slash.

Take Advantage of Metis' Support Skills

Metis will face some challenges in this fight since Koromaru has Counter, while Junpei resists Slash. However, she's not entirely worthless thanks to her support skills. Her Dekaja can cancel out the opposing team's Marakukaja and Revolution, while her Matarukaja boosts her team's attack.

Junpei and Koromaru Recommended Party

Metis is Still Your Only Other Party Member

Character	Best Skills
Aigis (MC)	・Thunder Reign ・Salvation ・Akasha Arts ・Debilitate
・This time you need to switch between playing a healer role and dealing damage since they can reflect Physical damage with Counter. Salvation is a good choice keep HPs topped up while also removing any pesky status conditions. ・Having Debilitate or Marakunda to use would also be beneficial to increase your damage output. ・You can weave in your own Akasha Arts or Severe-tier Magic attacks, like Thunder Reign. Prioritize these moves since it can result into a critical hit, or a Shocked state.
Metis	・Matarukaja ・Dekaja ・Akasha Arts ・Charge
・Metis will be dealing most of the damage here with Akasha Arts. Using moves like Rebellion can increase Metis' chance of hitting a critical hit. ・Metis can also regularly cast Matarukaja to make sure both you and her are outpuitting as much damage as possible, combined with your Debilitate or any debuff you inflict. ・Weaving in a Charge turn for Metis can also be benefitical for dealing massive amounts of damage but it is not a priority.

Junpei and Koromaru Recommended Personas

Abaddon or Mara

Persona 3 Reload (P3R) Related Guides

List of All Bosses

All Episode Aigis Bosses

List of Episode Aigis DLC Bosses

All Story Bosses

List of All Story Bosses

All Guardian Bosses

List of All Guardian Bosses

All Superbosses

List of All Superbosses

All Monad Bosses

List of All Monad Bosses