Ika Museme

As someone who came from the sea, Ika Musume is ignorant of most of the ways of humankind. She is obsessed with showing her abilities, that she think that humans can't surpass. As she came to invade the surface world, she is very irritated by people who don't take her plans seriously and become very delighted with people who fears her and sees her invasion plan a threat. She is very caring to the environment, occasionally picking trash about the beach. Ika Musume's favorite food is shrimp, eating all the shrimps in the shrimp fried rice order of a customer. She has however a soft side and can be playful and childish and occasionally sympathetic with humans she despises. Ika Musume at first appears to be a human, except that she has sky blue tentacles which also serves as her hair. She also wears a "hat" resembling that of a squid. Her hat is a part of her head and cannot be removed or she risks dying. Her outfit mainly consists a white summer dress with light blue linings and a pair of white ankle boots with a thick ring on top. Around her wrists she always wears two thick blue bracelets that are actually weight shifters.

In episode 12 she cut her tentacles off because they were not working anymore, but they grew back later in the episode.

Aside from her usual dress, she is seen wearing a simple white, one piece, bathing suit when she is swimming.

She also had a coat in Episode 10.

In episode 12 season 2 she wore a pink kimono to a festival

Ika Musume as a squid girl has a variety of skills and abilities. She can control her tentacle "hair" as if they were her hands. Ika has the ability to spit squid ink. These tentacles can demonstrate great strength and accuracy capable of destroying steel walls with ease. Ika Musume can also glow luminously like a firefly squid. Ika's bracelets can actually modify her weight which can make her either heavier, so she can lift heavier objects or lighter so she can actually fly. These bracelets don't make her fatter or thinner. She is also a prodigy, able to master high school math, learn both Japanese and English and draw beautifully effortlessly. Eiko remarked that she is good at everything but invading.

Squid girl lives in the ocean and has taken up residence in her friend Eiko’s house while also working at a beachside restaurant owned by eiko’s older sister Chizeru