Nyarko is usually happy and hyper, but she's caught a cold and is stuck in bed. Nyarko is smitten by Mahiro, who's being a little nicer than usual. It's then that they get a report that an intruder has shown up at the North Pole. They leave Nyarko behind to recover and find that Mi-go was waiting for them...
This is my biggest blunder in life.
Yo, Nyarko, cometí el 
mayor error de mi vida.
Yo, Nyarko, he cometido el mayor error de mi vida.
Este é o maior erro da minha na vida.