Serie includes 17 albums .
Christmas ni Pop na Futari ga Yattekita!
Daichi-kun, Anone.
Mitsugetsu ni wa Touku Tomo
Mitsugetsu ni wa Touku Tomo | Even though they're still far from the Honeymoon
Popu pipi pipippi
Popu pipi pipippi - Popchin and Pipipippi are Lovers
Popu pipi pipippi | Popchin and Pipipippi are Lovers
Poputepipippa