Ep. 1: Squid Girl suspects invasion countermeasures while Sanae gets jealous and a jellyfish contest begins.
Aired on September 27, 2011

Squid Girl renews her determination to invade humanity and begins suspecting ordinary events are countermeasures against her plans. Kiyomi and her friends visit the Lemon to see Squid Girl, which causes Sanae to become extremely jealous. Meanwhile, the sea fills with jellyfish, prompting the Lemon to host a contest to determine who can catch the most. The episode features these three distinct segments involving Squid Girl's paranoia, interpersonal jealousy, and a local fishing competition.
Episodes
- Ep. 1 · Squid Girl suspects invasion countermeasures while Sanae gets jealous and a jellyfish contest begins.
- Ep. 2 · Squid Girl visits school, tries cosplay, and experiments with weight control.
- Ep. 3 · Squid Girl walks a jealous dog, exercises cause trouble, and she proves her lifesaving worth.
- Ep. 4 · Squid Girl teaches English, gets ticklish, and drifts to a new beach
- Ep. 5 · Squid Girl breaks a radio car, struggles with Tanabata wishes, and helps Takeru find solo play ideas