The prank genius Zorori is captivated by the singing voice of a girl named Hipopo, who dreams of becoming a singer. He devises a plan to promote her in a group with Ishishi and Noshishi to make a fortune. Their goal is to pass the "Next Generation Star Audition" taking place in a month and make their debut! However, Hipopo has lost her ability to sing out loud for a certain reason. Zorori comes up with a plan and, with the help of his yokai friends, starts training Hipopo.