On a drizzley morning, Miss Monochrome wakes up in her four and a half tatami-mat sized apartment. When she tries to change her battery, a leak in her roof causes her battery box to explode. What should appear from the smoke of the explosion but a good-looking guy in the form of a battery! Miss Monochrome and Battery-kun are shocked by this destined encounter. Thus begins their days of friendship.
Let's go. I will become a top idol.
هيّا بنا، سوف أصبح أفضل نجمة
Los, komm. Ich werde ein Top Idol!
Bien, seré la mejor idol.
Seré la mejor idol.
Maintenant, je dois devenir
une super idole !
Andiamo. Diventerò una idol di prima categoria.
Vamos. Vou me tornar 
uma ídolo de primeira.