It's Kuromi's birthday, which just so happens to also be on Halloween. As she heads to her shed to get decorations, she faints finding out it's empty. Her friends find her on the floor and Kuromi demands where her decorations are. After Kuromi leaves, hello kitty comes up with a plan to give her the best haunted house Kuromi dreams about having the best and scariest haunted house ever. Kuromi then excitedly wakes up and goes to her shed to get her haunted house decorations, only to find out in horror that it's completely empty. She then faints to the ground. Later, you and Hello Kitty and Pompompurin find her on the floor and wake her up. My Melody and Keroppi then walk in, with My Melody singing a happy birthday song. Kuromi interrupts her by yelling out asking where her decorations are. Pompom then asks if the decorations weren't edible by any chance Kuromi then starts theorizing what could've happened to them. Keroppi asks if she looked under her bed. Kuromi then finds a way to not ruin her Halloween experience. Kitty then tells Kuromi that everyone loves Kuromi's haunted house and that no one would steal the decorations. Kuromi ignores her and starts her solution by ordering lots of springs. Kitty then says the best birthday gift they can give Kuromi is a super surprise haunted house you nod because kuiomi was like the big sister to you. Keroppi asks her how they're gonna do that. You and kitty then organizes the plan to everyone. My Melody you and Pompom are in charge of costumes, Kuromi happy, and Kitty will build the haunted house until everyone gets back. Time passes to after they get done building, where Keroppi is bringing Kuromi in a wagon to the haunted house. Pompom and you as a ghost walks out of the house and pulls Kuromi's wagon inside and throughout the house. Some prop ghosts jump out, as well as Keroppi dressed as a clown. They then head to a coffin where Badtz as a vampire rises up from it. They head further into the house until Kitty as a house, where My Melody as a witch is stirring some