One of the most popular idols in the netherworld, Kuromu-chan, holds an all-day concert at the Makubari Dome. Dem-dols have the important job of helping demons release the stress and evil desires they feel during their Evil Cycle. Kuromu was considered a shining new star in the field, and her tickets would usually sell out in one day. But she actually had a secret that she couldn’t tell anyone... Iruma just happened to be lucky enough to get tickets for her concert and takes Asmodeus and Clara with him!
I swore that I'd be a dem-dol 
who shines more than anyone.
.أقسمتُ أن أكون نجمة جماهير شيطانية تتألّق أكثر من الجميع
Giuro che diventerò la dem-dol 
più brillante di tutte.
Eu jurei que seria uma pessoa
que brilha mais do que ninguém.
Я поклялась стать
самой яркой демон-айдолом!