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Best Friend, also known as Shadow Rei, is a boss in Persona Q: Shadow of the Labyrinth.



Persona Q: Shadow of the Labyrinth

Best Friend is the Shadow Self of Rei and the guardian of the Inaba Pride Exhibit. It is deployed by Chronos to guard an item that unlocks Rei's memories. Best Friend appears as a giant monstrous rabbit plushie and is formed when Shadow Rei fuses with her rabbit doll. Upon defeat, Rei continues to deny her Shadow, who then disappears into black smoke.

The shadow is discovered to be guarding a letter, revealing that a girl named Niko is dead. Zen then recovers all his memories and discovers he is Chronos, and had a job to see Rei off into the afterlife. After Rei regains her memories, her Shadow is seen in an instant speaking though Rei, indicating that Rei has become one with her Shadow.

Best Friend's appearance is based on the rabbit doll Rei owned, being the rabbit from the storybook she once read.


Best Friend can act twice in each of its turns. Its main attacks are all physical, so elemental weaknesses are not a major issue. Using Fang Smash should largely reduce its offensive power, and Swordbreaker or Immunity Buffer can reduce the damage the party would be suffering in general.

Its most lethal attack is Rabbit's Foot, which hits many times but is offset with terrible accuracy. However, at around 50% HP, it will start to use its entire turn to "take a deep breath," signaling that it's about to use Deafening Roar, which will cause knockdown to the party, rendering them unable to dodge Rabbit's Foot. At 25% HP, it will start casting Tarukaja and Rakukaja before taking its deep breath.

When it gets defeated the first time, it will Endure the blow and restore itself to half HP, but also reset its behavior to match its appropriate HP thresholds.

The battle will be long, and Poison and Curse will not work on this boss, so fight conservatively, and use Boost status wisely. Since it has no elemental weaknesses, critical hits from physical attacks are the only way to achieve Boost status in the fight, so skills like Mind's Eye are helpful. When it "takes a deep breath," have the entire party defend to nullify the effects of Deafening Roar. As a result, the subsequent Rabbit's Foot is highly likely to miss all its hits.


Persona Q: Shadow of the Labyrinth

Level HP Attack Defense
Strength 60
Magic 48
Endurance 61
Agility 51
Luck 49
61 12000 180 183
Exp Drop 1 Drop 2 Drop 3
249640 Hand-Sewn Vest - -
Cut Stab Bash Fire Ice Elec Wind Light Dark Alm
- - - - - - - Null Null -
Sleep Panic Poison Curse Paralysis S-Bind M-Bind A-Bind Down KO
Resist Resist Null Null Resist Resist - - Null Null
List of Skills
Skill Effect
Deafening Roar A high chance of knockdown. (All enemies)
Rabbit's Foot 10 light Bash attacks at random, with low accuracy. (All enemies)
Tarukaja Raise attack for 3 turns. (1 ally)
Blade of Fury A heavy Cut attack. (1 row)
Spin Slash A heavy Cut attack. (All enemies)
Rakukaja Raise defense for 3 turns. (1 ally)
Endure Withstand damage that brings HP down to 0 with 1 HP



  • When Rei continues to deny her Shadow, it disappears into black smoke, similar to Shadow Mitsuo.
  • A portion of one of the BGMs for the Inaba Pride Exhibit, "Looming Danger", is a remix of "I'll Face Myself - Battle," foreshadowing Rei's Shadow being the guardian of the labyrinth.

Playable - P3 P3 hero - Yukari Takeba - Junpei Iori - Akihiko Sanada - Mitsuru Kirijo - Fuuka Yamagishi - Aigis - Koromaru - Ken Amada - Shinjiro Aragaki
Playable - P4 P4 hero - Yosuke Hanamura - Chie Satonaka - Yukiko Amagi - Kanji Tatsumi - Rise Kujikawa - Teddie - Naoto Shirogane
Playable - PQ Rei & Zen
Non-playable Elizabeth - Margaret - Theodore - Marie - Nanako Dojima - Queen of Hearts - Merciful Clergyman - Kind Doctor - Best Friend - Clockwork God - Chronos - Zeus
Origin Tartarus - Yasogami High School
Main Hub Handcrafted Workshop - Nurse's Office - Velvet Room
Labyrinths You in Wonderland - Group Date Cafe - Evil Spirit Club - Inaba Pride Exhibit - Clock Tower
Albums Original Soundtrack - Sound of the Labyrinth
Songs "Maze of Life" - "Light the Fire Up in the Night" - "Laser Beam" - "Changing Me"
Terminology Persona (Sub-Persona) - Persona user - Velvet Room - Fusion (Sacrificial Fusion) - Shadow (F.O.E) - Wild Card - Dark Hour - Evoker - Boost - Power Spot - Skill Card - SEES - Investigation Team - Cut-in - All-Out Attack
Lists Arcana - Personas - Shadows - Bosses - Skills (Skill Cards) - Items - Ailments - Requests - Patches and Updates
Other Media
Manga -Roundabout- - Side:P3 - Side:P4
Productions Escape From Persona Q: Cyber Labyrinth - Official Visual Material