Konotabi, Yuusha wa MonMusu wo Idol e Michibiku Koto ni Narimashita

He may have defeated the Demon King, but hero Rick's job isn't over yet: demons still roam the world, and the human race still lives in fear of another demonic uprising. At a complete loss, Rick talks to an old friend who gives him a fantastic idea: why not gather a group of monster girls and make idols out of them? Their dulcet tones and cute charms may be the key to putting the hearts of both humans and demons alike at ease. With that, he recruits three girls: Yurina the self-doubting siren, Salala the tsundere Dryad, and Limuria the air-headed golem, and the four of them set out on the bumpy road to stardom.