The girls from GIRLS are back. Agira, Miclas, and Windom have settled in as full fledged members of the International Kaiju Resue and Mentoring Organization, but it's not long before the threat of the Shadows appears again.
Agira helps Alien Guts and King Joe overcome the threat of Shadow Mist, a type of Shadow that possesses people. When you can't use brute force to defeat your enemy, what's a kaiju to do?
Agira and Guts commiserate over the threat of Shadow Mist, and decide to be there for each other when they need help. Which doesn't take long, because the Shadows are attacking again.
The news of Alien Guts' evil doppleganger shakes Agira up, but Pigmon and Eleking are already coming up with a plan to stop the savage lookalike from causing more havoc.
Alien Guts has a showdown with her double, Shadow Guts. The Kaiju Girls are nervous about their first big plan since they teamed up. But they're joined by...?