Pekora's subordinate back in Heaven. She was promoted after Pekora fell to Earth, but in order to retain her status, she needs to kill Pekora so she can't come back to Heaven to reclaim her rightful post.
Poporon also seeks to kill Jashin-chan because she ate her halo, thereby confining her to Earth.
Poporon works part time as a waitress and is an aspiring idol.