Justine and Caroline Secret Boss Guide [Persona 5/P5]

This article contains the boss guide for Justine and Caroline.

Justine and Caroline Secret Boss Strategy Guide

If you want to fight Justine and Caroline, wait until you reach the 1st week of the second month. However, I highly recommend you fighting them only when you have enough gear and confidence to take them down. Even with using strong personas such as Satan, Shiva, Ishtar, and etc., they can still dish out a lot of damage despite it.

Unlike the other battles from the former games, Justine and Caroline have Baton Pass. This evidently makes it harder for you as they can knock you down and deal heavier damage should they perform the Baton Pass.

Stats/ Information

Level 99
HP 8000
SP 999
Strength 99
Magic 99
Endurance 99
Speed 99
Luck 99
Items Depends on the amount of turns survived.

Justine and Caroline Boss Fight Mechanics

Even if you lose against Justine and Caroline, it’s alright. You won’t have to feel too bad. They give rewards based on the number of turns you survive against them. They also give a variety of Consolation Prizes such as Soul Foods, Balms of Life, and etc.

Number of Turns Survived Reward
 10 Experience Ring
20 Expedite Badge, Balm of Life x 20

Justine & Caroline Strategy Guide

If you want to defeat them, make sure all your teammates are on their awakened persona. That way, they’ll at least have the Evade ability for their weakness. For the main character, use a persona without any affinity weaknesses. Or, at least something that could withstand heavy Light and Dark attacks.

Katherine Baskerville Notes: I used Sandalphon and Trumpeter for this. It’s quite useful especially since it either absorbed or flew at them.

Also, since they don’t have weaknesses, you’ll have to rely on critical hits. Have at least two healers in the party to prevent taking too much damage. Again, focus only one at a time in order to take them down.

Justine & Caroline Behavior Pattern

1st Exchange

Caroline will use Vajra Blasts every so often. However, Justine will use Triple Down with a High Crit Rate. If she manages to knock you down, she can cast Dekunda to remove any debuffs. For this one, use Trumpeter and use Debilitate on both the twins. Then, swap to a persona that can nullify physical attacks. It’ll save you from a lot of damage.

2nd Exchange

With that, they’ll begin using a variety of skills. Caroline opens with Maragidyne while Justine will focus using Garudyne and Ziodyne.  However, they’ll retain their Dekunda skills but use the primary elemental skills. This includes Ziodyne, Garudyne, Bufudyne, and etc. At some point, one of them will use Diarahan on one another.

3rd Exchange

Here, Justine and Caroline will swap to using either Frei, Psi, Kouha, and Eiha skills. They’ll use either single or multiple target attacks. Every odd numbered turn, they’ll use Kouha/ Eiha. Even numbered turns, they’ll use Psi/Frei.

4th Exchange

Here, you’ll have a bit of an issue since it’s random. At one point however, the twins are going to get annoyed with you and will finish you off with an all-out attack. The best way to defeat them is to focus them down one at the time. That way, you can at least force one to cast Samarecarm/Recarm on the other twin.

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11 Comments on "Justine and Caroline Secret Boss Guide [Persona 5/P5]"

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I don’t know the exact rewards for rounds 30 or if the rewards for what I got are the same, but I reached 51 and the rewards were: 1 Expedite badge, 20 Balm of Life, 3 Soma, 5 Bead chains, and 20 Soul food.

So can they be knocked down by critical hits?

fuse yoshitsune, choose ali dance or firm stance, if you get ali dance then sacrifice sandalphon for angelic grace skill card as it stacks with ali dance. including hassou tobi, charge, and arms master you now have a persona that easily kills the twin wardens, and the only other necessity is having yusuke cast accuracy up so both twins always get hit by hassou tobi. if you want to make it even easier, its either lucifer or satan that tranmutate into male armor that reduces magic dmg, and females can wear the 500k yen accessory that does the same. to… Read more »

Thanks I was wondering how to get the angelic grace skill card

So, first time going against the twins and everyone’s at max level. And I was OHKO’d at turn 11 by an All-Out Attack with everyone at more than 3/4 of their health (after taking that multi-target skill that downed everyone) and my Messiah Picaro even had Enduring Soul. I was expecting for only Joker to live through that, then maybe Futaba using Emergency Shift to swap in the reserves… But, nope, I was defeated.

it’s a timed battle you have to take off a set hit point amount before a set amount of turns end each phase (I think about 2500) or the twins will automatically hit each one of your team with their weakness and either do the same to you or score a crit

They tend to follow the same patterns in each phase! (They might stop to heal and/or debuff, but they continue the pattern afterwards.

1st phase (Turns 1-5) Melee/Gun
2nd Phase (Turns 6-10) [Fire/Ice -> Lightning/Wind] Repeat
3rd Phase (Turns 11-15) [Psychic/Nuke -> Light/Dark] Repeat
4th Phase (Turns 16-20) The whole cycle [Melee/Gun -> Fire/Ice -> Lightning/Wind -> Psychic/Nuke -> Light/Dark]
5th Phase (Turns 21-25) Same as 4th phase, but with the highest level skills
Final Phase (Turns 26+) Highest levels skills, “Random order” They need to finish using each type of attack before starting over, use this to predict the back end of the cycles.

Happy Thieving!

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The twins have 8,000 HP

I got the experience ring after a 17 turn loss, so maybe it’s under 20 turns?

it’s meant to say surviving “X” number of turns