- 1Who’s up for a Squid-Vasion? / Hold on a Squid, Aren’t You a Compatriot? / Aren’t I Just the Squiddiest?
- 2Wait a Squid, Aren’t You on My Side? / Up for a Squid-Celebration? / Wanna Play With This Squid?
- 3Aren’t You a Fraidy-Squid? / You’re the Squid’s Sworn Enemy, Aren’t You? / Squidzooks! Aren’t You a New Recruit?
- 4How Much is That Squiddy in the Window? / Ride ’em, Squiddy! / You’re Phonier Than an 11-tentacled Squid!
- 5Not From This Sea, Are You? / Why Not Join the School of Fish? / Wouldn’t Having a Pet Be Squidtastic?
- 6Up For an Inkredible Hero Stage Show? / Squidn’t You Be Studying Right Now? / Is This Inkfatuation or Love?
- 7Focus Your Tentacles On Her! / Feeling Inkuisitive? / A Squiddle Work Never Killed Anyone.
- 8Aren’t You a Squiddle Under the Weather? / Ink That a New Ability? / Squidn’t You Bring an Umbrella?
- 9Wanna Doorbell Ditch, Squiddo? / Can Squids Put On Make-Up? / Holy Squid! Is That a Secret Weapon?
- 10Isn’t That a Teru Teru Bosquid? / What Squidsn’t There to Like? / One! Two! Three Squids, You’re Out!
- 11I Ink That’s a Doll? / Isn’t That Fishy? / Squids to Match My Mountains.
- 12You Feeling Lucky, Squid? / Quite the Squidicament We’re In. / An Even Worse Squidicament!
Angered by the pollution in the seas, a squid girl named Ika Musume comes from the sea and declares the invasion of Earth at a nearby yakisoba stand, but isn’t taken seriously due to her small stature. When she goes to plead her case, she is mistaken for a waitress, which puts the responsibility of invading the world into perspective. When she breaks a hole in the store with her tentacles trying to hit a mosquito, the store manager, Eiko Aizawa, puts her to work in order to pay for the damages. Later, Ika meets Eiko’s little brother, Takeru, who goes to great lengths to pretend to be a squid-person so he can be Ika’s comrade. During a rainy day where there are few customers, Ika takes the opportunity to try and take over the stand, but is overpowered by the eldest sister, Chizuru. As punishment, Ika is forced to use her own ink to make Squid Ink Spaghetti, which becomes popular.