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"It's the world's smartest potion by youkai-born people. It lets you take on the form of somebody else if you need to get something you can't get to. With it, you're completely invisible for any operation."
- Official description

The Polyjuice Potion (ポリジュースポーション Porijūsu Pōshon?) is a potion that allows the consumer to temporarily assume the form of someone else from a period of ten minutes to an entire day, depending on the amount consumed. The potion causes a physical transformation of the consumer, but clothes and voice are not affected. It is a difficult potion that many adult humanoids and youkai struggle to brew correctly, and the potion has two parts that contain steps for each. When brewing is complete, the potion must stew for a month before usage.

OverviewEdit

While it can account for both age and gender, Polyjuice Potion cannot be used for a humanoid to transform into an animal, nor can it be used on non-humanoids or half-humanoids such as youkai, while humanoids can use the potion to take the form of a youkai (if they are humanoid).

Noticeably, the Polyjuice Potion was used many times in The Drillimation Series, although there are no documented instances of it. The potion also played a crucial role in Konata Izumi, Susumu Hori, and Wataru Hoshi throughout their journeys in high school. It was also used in Keel Sark's plot to smuggle Team Ankoku hackers into Ryou Gakuen High School of Magic and Drilling, in the Battle of Team Driller and Team Ankoku, and in Konata, Susumu and Wataru's Infiltration of the Team Ankoku Planet and their break-in of Dr. Manhole's secret lair.

Polyjuice Potion is among the products sold in the Magic Store of Ryou Gakuen High School.

IngredientsEdit

  • 1 cup of orange juice (without pulp)
  • 3 tbsp of sweetened ginger tea concentrate (recipe below)
  • 2 halved peach slices (canned)
  • Half a cup of Sprite
  • 1 drop of blue food coloring
  • 4 tbsp of vodka (optional)
  • 2 ginger tea bags
  • 1 cup of hot water
  • 2 tbsp of honey
  • Hair or nail of the person you want to assume

Brewing InstructionsEdit

  1. Steep bags of ginger tea in hot water for 10 minutes.
  2. Mix in honey.
  3. Place the orange juice, peaches, and sweetened ginger tea concentrate in a blender.
  4. Blend until peaches have been crushed and mixed with the juice.
  5. Add vodka, Sprite, and blue food coloring.
  6. Adjust the food coloring until you get the perfect shade of green that you want.
  7. Add the hair or nail of the person you want to assume.
  8. Drink it and perform your operation after transformation.

Known usesEdit

In the animeEdit

Konata and the Search of MizudanEdit

"Immediately, my insides started writhing as though I just swallowed live snakes - doubled up, I wondered whether I was going to be sick - then a burning sensation spread rapidly from my stomach to the very ends of my fingers and toes - next, bringing me gasping to all fours, came a horrible melting feeling, as the skin all over my body bubbled like hot wax - and before my eyes, my hands began to grow, my fingers thickened, my knuckles were bulging like bolts - my shoulders stretched painfully and a prickling on my forehead told me that my hair was getting short and turning from blue to brown - my robes ripped as my chest expanded like a barrel bursting its hoops - my feet were agony in shoes four sizes too small."
- Konata Izumi, telling her experience after using it for the first time

During a discussion in the Lucky Star episode Ring, Konata suspects that a lot of Haruhi Suzumiya's family members have been in Mizudan. Aware that it is dangerous to enter other schools without authorization, Miyuki suggested using Polyjuice Potion to carry this operation out. To start this, Tsukasa gets the recipe for the potion online and sends Inori and Matsuri out to local supermarkets to buy the ingredients. After doing so, Tsukasa begins the long and lengthy process of brewing the potion.

Additionally, Kagami was sent out to grab hair samples from their targets, as well as getting their outfits to complete the disguise. Konata and Patricia successfully assumed the forms of Haruhi Suzumiya and Mikuru Asahina, Tsukasa's attempt to take the form of Yuki Nagato failed as Nagato's hair sample had a bit of gunpowder in it, resulting in Tsukasa transforming into a creeper. Miki remedied this with some milk and was forced to stay away from anyone to avoid instant suicide from exploding.

The Battle of the Seven Izumi DescendantsEdit

"There will be seven of her. That way, he won't know which Konata Izumi is the real one."
- James Rolfe, explaining the operation

Three of the Lucky Stars, Kagami Hiiragi, Tsukasa Hiiragi, and Miyuki Takara, as well as three from Akira's school with Akira Kogami herself, Akuru Nakatani, and Madoka O'hara made use of Polyjuice to transform into Konata look-alikes to remove themselves from Team Ankoku's slavery and to attack Team Ankoku without letting them know it's themselves.

Infiltration of Kingdom BrigadeEdit

In an attempt to destroy the Enthronement Locket Horcrux, they needed to get inside Kingdom Brigade to do so. However, the Lucky Stars ran into trouble as they knew that any attempts to get inside the kingdom would fail as Haruhi is Konata's rival and would be expelled. To make things better, Polyjuice Potion had to be used in order to get inside. Like before, Kagami was sent out to grab their outfits for the attackers to complete the disguise. Konata takes on the form of Haruhi, Patricia assumes Mikuru, Minami takes on Yuki, Susumu becomes Kyon, and Lord Soujirou becomes the kingdom's king.

During the infiltration, they were having difficulty trying to find the queen, and when the finally did and after taking over the Horcrux, the potion begins to wear off as they escape. Shortly after beginning to run, the queen goes after them, as Minami disarms her with an Expelliarmus.

In the gamesEdit

Lucky Star BloodlinesEdit

In the 1994 danmaku shooter Lucky Star Bloodlines, the potion makes its first appearance in video game form. Lucky Star Bloodlines has players playing in pairs, similar to the mechanics from Touhou 8: Imperishable Night. In order to use the potion, the player must collect five Gijinka Shards from defeating enemies. After collecting all five of them, the player can then transform into the "Polyjuice Character" by pushing the Bomb button, and the potion lasts depending on how many bombs the player has remaining (multiplied by 10, this does not remove a bomb upon usage). The character that they will transform into depends on the character:

Team Character Assumed Identity
Izumi Cousins Konata Izumi Marisa Kirisame
Yutaka Kobayakawa Hong Meiling
Hiiragi Twins Kagami Hiiragi Reimu Hakurei
Tsukasa Hiiragi Remilia Scarlet
Freezing Magicians Miyuki Takara Yukari Yakumo
Minami Iwasaki Ran Yakumo
Serious Geniuses Patricia Martin Sakuya Izayoi
Hiyori Tamura Patchouli Knowledge

List of Polyjuice TransformationsEdit

Lucky StarEdit

Consumer Transformed into Used in Reason
Konata Izumi Haruhi Suzumiya Ring To get into Haruhi's school to spy on her principal and to sing Hare Hare Yukai at a cosplay café.
Patricia Martin Mikuru Asahina To get into Haruhi's school to spy on her principal and to sing Hare Hare Yukai at a cosplay café.
Tsukasa Hiiragi Humanoid creeper Originally to transform into Yuki Nagato and sneak into Haruhi's school to spy on her principal, as well as singing Hare Hare Yukai at a cosplay café, she ended up getting a creeper appearance due to including gunpowder in her polyjuice.
Keel Sark Minoru Shiraishi Keel Breaches the School To infiltrate Ryou Gakuen High School of Magic and Drilling in an attempt to steal Konata's identity.
Konata Izumi Miki Hiiragi The Hiiragi Twins' New Mother To temporarily switch places with Kagami and Tsukasa's mother.
Miki Hiiragi Konata Izumi To temporarily switch places with Konata.
Konata Izumi Flandre Scarlet Vampires Hunt the Hackers To keep an eye out on Team Ankoku hackers while Tadao and Miki Hiiragi were trying to fix the antenna at the Takanomiya Shrine.
Kagami Hiiragi Remilia Scarlet
Akira Kogami Konata Izumi The Battle of the Seven Izumi Descendants To remove themselves from Team Ankoku's slavery.
Akuru Nakatani
Madoka O'hara
Kagami Hiiragi
Tsukasa Hiiragi
Miyuki Takara
Konata Izumi Haruhi Suzumiya Infiltration of Kingdom Brigade To infiltrate Kingdom Brigade and steal the Enthronement Horcrux from their queen.
Patricia Martin Mikuru Asahina
Minami Iwasaki Yuki Nagato
Susumu Hori Prince Kyon
Soujirou Izumi Kingdom Brigade's king
Tsukasa Hiiragi Yukari Yakumo Flight of the Youkai To gain access to a vault in Dr. Manhole's fortress.
Misao Kusakabe Marisa Kirisame Idents/Bumpers Unknown

Chuhou JoutaiEdit

Consumer Transformed into Date Reason
Takumi Hearthcliffe Susumu Takajima March 10, 2007 To take Kagami Ochiai to the Altar of Hidden Evil.
Susumu Takajima Takumi Hearthcliffe September 1, 2007 To get inside Emenbee Elementary and Junior High School.
Kagami Ochiai Sassy Otaku

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