Ika Musume


Biological Age is Unknown. (10-14 speculated from her statement in Episode 2.)


0.0005 - 20,000 kilos (Her weight can change.)


Unknown, although her kind is speculated to be called "Squid People"

Voiced By:

Hisako Kanemoto (Japanese)
Christine Marie Cabanos (English)
Wiphada Chatuisaphon (Thai)

Catch Phrases:

"De-geso", "janaika?"


Squid Ink
High intelligence


The Ocean


Ocean Pollution
Sanae Nagatsuki
Chizuru Aizawa

Ika Musume (イカ娘, lit. Squid Girl) is a squid girl who comes from the sea with plans to invade humanity as punishment for the pollution done to the sea. However, after causing damage to a beach house, she is forced to work as a waitress to pay for the damages. She later begins living at the Aizawa residence. Ika Musume is voiced by Hisako Kanemoto.


Like a squid, she has ten fully controllable tentacles that protrude from the top of her head like hair. These tentacles are very strong, incredibly dexterous, and can be controlled effortlessly by Ika Musume; they also can stretch a huge range and have a variety of offensive capabilities. The squid ink she can spew from her mouth is noted to be of high quality and is used for the 'squid ink spaghetti' dish in the Lemon Beach House. Shrimp is her favorite food and her strong craving for shrimp is shown regularly. She fears natural predators like killer whales to the point that even swimming floats shaped like killer whales terrify her. Like some species of squid, she possesses bioluminescence.

She has a "hat" resembling the head of a squid, which is, above all else, how she recognizes her own kind. If someone wears a similar hat, she will instantly believe that he/she is one of her own species, and without it, she will not even recognize a fake version of her own head. While it is called a hat, it is part of her body, which allows her to control the fins. Originally, she does not know this, so she believed that the fins had no purpose, but after learning how to control them, She uses them to slap people such as Sanae. According to her, she will die if she takes the hat off, and it is shown on multiple occasions that it is directly attached to her head. When trying to forcibly remove it, it starts to make a ripping sound from the strain, gives her enough pain and shock to recover from amnesia and leak squid ink from the tear.

Due to her small stature, she can adjust her weight in order to pick up larger objects without being toppled over. Adjusting the bands on her wrists allows her to go from anywhere between 0.0005kg to 20,000kg in an instant. She can float on an updraft at her lightest, allowing her to take "flight".


Due to the dexterity and the ability to manipulate her tentacles at will, she can use her tentacles for many purposes. She can deliver a powerful smack, wrap them around a foe and hoist them into the air, or coerce them through tickling. She can use her tentacles to carry many plates at once while working at the beach house. Drawing with her tentacles results in hyper-detailed masterpieces. She also excels at drumming and physical activities such as volleyball with the help of her tentacles. Despite her usual naivety, she displays a high level of intelligence on many occasions; it is revealed she is a mathematical genius, capable of working with such functions as the Fourier analysis and the Poisson summation formula. Chizuru notes how quickly she learned how to speak Japanese and interact with humans and it is also shown that she picks up English very quickly after being taught by Cindy. She can also emit light from her body like a firefly squid. Ika Musume also vomits squid ink when her stomach feels queasy.


Level of intimacy based on how one addresses Ika Musume:


Ika after a week with Gorō's mom.

Japanese Romaji Characters Relation
イカ 娘ちゃん Ika Musume-chan Chizuru Aizawa Though she wants to be closer to Ika Musume, Ika Musume is wary of her.
イカ 娘 Ika Musume Eiko Aizawa, Gorō Arashiyama No nonsense, fights frequently.
イカ 姉ちゃん Ika Nee-chan Takeru Aizawa, most children younger than Ika Musume Respects Ika Musume as an elder.
イカ ちゃん Ika-chan Sanae Nagatsuki, Kiyomi Sakura Loves Ika Musume.
イカ 先輩 Ika -senpai Yuka Nishimura, Tomomi Mochizuki Loves Ika Musume.
イカ の嬢ちゃん Ika no Jō-chan (miss) Gorō's mother Motherly figure, feeds Ika Musume until she becomes fat[1].
イカ さん Ika-san Ayumi Tokita Respects Ika Musume.
イカ 星人 Ika Seijin (alien) Cindy Campbell Tries to capture Ika Musume and bring her to her laboratory.
イカ の人 Ika no hito (person) Nagisa Saitō Considers Ika Musume as a threat to mankind.

イカ 女

Ika onna (woman) Aiko Saitō

Considers Ika Musume as a rival.

  • Chizuru Aizawa: Although she likes to tease Ika Musume[2], she wishes to be closer to Ika[3], just as Eiko and Takeru do. The main obstacle to her wish is Ika Musume's wariness to her in general and to her eyes in particular. During Kiyomi's visit, Chizuru open her eyes to convey support, but Ika Musume interprets it as silent treat. When Chizuru wears contact lenses[4], accidental eye contacts causes Ika Musume to squirt a slice of lemon to Chizuru's eyes - to force them close.
  • Eiko Aizawa: Although Kiyomi Sakura is Ika Musume's first friend by choice, Eiko is her first and best friend on the surface world. Apart from sharing the same room and working together at Lemon, they often hang out together[5] outside.


  • Her dress is not an ordinary one, with at least 2 known features:
    • Auto-repair in 15 minutes: after being ripped by protruding wire-mesh fence[6] and torn in half by Eiko[7].
    • Non-sticky/instant dry: after a car splashes roadside puddle, Ika Musume simply dusts it off and after she sits on a chair with wet paint, she simply peels the paint away[6].
    • Also, while not exactly a "feature", when she went tanning while wearing her dress, her dress "tanned" while her skin remained the same tone.
  • Ika Musume is quite similar to Sgt.Keroro of the Sgt.Frog series as both are characters planning to invade Earth for a reason (Sgt.Frog invades Earth/Pekopon to relay information to the awaiting Keron Invasion Army whereas Ika Musume invades Earth because humans are polluting the oceans), both ended up as a slave after they did something bad (i.e damaging property), and both characters ended up befriending a human but decided to use them as part of their so-called "invasion plans". Oddly enough, both often have crazy misadventures while trying to "invade" Earth.
  • In the Drama CD, Ika Musume is shown to have the ability to break any material (ex. glass) with an ultra sonic resonance.


For the rest of the Gallery see here: Ika Musume/Squid Girl Gallery.


  1. Manga Volume 15 Chapter 277
  2. Manga Volume 8 Chapter 147
  3. Manga Volume 9 Chapter 155
  4. Manga Volume 4 Chapter 76
  5. Baby stroller / wheelbarrow ride, leisure strolls, go to arcade
  6. 6.0 6.1 Manga Volume 13 Chapter 247
  7. Manga Volume 15 Chapter 268

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