Knock-Knock

 is the second digital single released by PATI PATI CANDY...☆.

It was released on May 23, 2021.

Tracklist

 * 1) Knock-Knock

Featured Members

 * Mia
 * Chan Kuma
 * sh!ro
 * moe
 * Sappi
 * Himawari
 * Ayuka (Last)
 * moka
 * Rina-chan.
 * Mococheese
 * kanon
 * Kokko
 * Kou-chan
 * Saecha
 * Saaya