Squid Girl practices her invasion plans on the Lemon shack; and the folks there play along. Realizing that Chizuru has been able to defend Lemon from other invaders (bugs or rats), Squid Girl trains harder on invading. Squid Girl gets into a fight with Eiko and it carries over to work. Chizuru has them go to a summer festival. Squid Girl ends up getting separated from her friends. As a shower hits, Eiko decides to search for her and meets Kozue, who helps her find and make up with Squid Girl.