One sunny day in Unikingdom, Unikitty and her friends were having a picnic lunch at the park. They had just finished the main course and were ready to have the dessert that Unikitty planned out for them, "Alright guys, you ready for this?" she asked as she opened up the picnic basket and pulled out the special dessert in a dramatic flourish.

"It's beautiful." Puppycorn said as he gazed at the delectable treat, an éclair with rainbow frosting on the top, filled with pink cream.

"Introducing, my specialty Rainbow Eclairs!" Unikitty announced as she held the treat aloft with her paw, all her friends gazing at in wonder.

"Well, what are we waiting for? Let's eat!" Dr. Fox said as Unikitty passed out the eclairs to everyone. Upon biting into them, each of them were instantly captivated by the flavor, savoring every moment of it being in their mouths.

"Excellent work as always Princess." Richard said.

"You always make my cheat days the best." said Hawkodile.

"Something this good shouldn't even be possible, yet you somehow managed it." Dr. Fox said.

"If I could, I would eat nothing but this for the rest of my life." Puppycorn said.

"Aw, thanks guys. Always happy to make your taste buds happy!" Unikitty said.

Unbeknownst to them, Master Frown was standing nearby, spying on them from behind a tree with a disgusted look on his face, "Look at them, eating that garbage." he mumbled to himself as Puppycorn took a bite out of an éclair before spraying whipped cream in his mouth, "Disgusting, I hate Rainbow Eclairs." he said.

Suddenly, laughter could be heard next to him, causing him to turn around and notice Unikitty suddenly standing right next to him, "Hahaha, that's a good one Master Frown!" she said.

"What is?" the Doom Lord asked.

"Like you don't know." she said before putting on a grumpy expression, "I hate Rainbow Eclairs!" she said, imitating Master Frown's voice before reverting back to her normal voice and expression, "That's hilarious! Everyone love Rainbow Eclairs!"

"Everybody but me." Master Frown said while pointing at himself.

Unikitty stared at him in silence for a moment before saying, "You're good at that." She then flew into the air a few feet before shouting, "Hey everyone, Master Frown says he doesn't like Rainbow Eclairs, haw!" causing everyone at the park, including Unikitty's friends to laugh.

She then flew back to the picnic and continued passing out eclairs while Master Frown followed her, "Do you always need to act like such a dingus?" he asked.

"Sorry Master Frown, it's just too funny. Because you know what they say?" Unikitty said before everyone in the park suddenly surrounded them and said, "The only people who don't like Rainbow Eclairs, have never tasted one!" before going back to whatever they were doing.

"That means, never had one, never will." Master Frown said, causing a chain of events within the group. Unikitty jolts up in surprise, the powdered sugar can that Dr. Fox held while she was putting it on her éclair opened and spilled all over it, and Hawkodile squeezed his éclair in surprise, causing the cream to shoot out and land on Puppycorn's head.

"What did you say?" Unikitty asked.

"What?" Master Frown asked.

"What you said just now."

"I've never had a Rainbow Éclair and I never will."

"Did you really just say-"

"I've never had a Rainbow Éclair and I never will."

"Gee, I could've sworn I heard you say-"

"I've never had a Rainbow Eclair!" Master Frown said.

"Those words, is it even scientifically possible to use them in a sentence like that?" Unikitty asked.

"That's what I'm trying to figure out right now!" Dr. Fox said while typing on a laptop.

"I've never had a Rainbow Éclair, I've never had a Rainbow Éclair, I've never had a Rainbow Éclair!" Master Frown shouted rapidly.

"Never had a Rainbow Éclair!? Well then you need to have one right now!" Unikitty said before taking one of them out and handing it to him, "No wonder you're so miserable, here take this."

"Get that garbage out of my face!" Master Frown said before slapping it away, prompting Unikitty to get another one.

"If you try it, you'll like it." she said.

"Try one of those indigestible sludge balls you call food? I believe next time you'll ask me to go disco roller-skating with Puppycorn." Master Frown said.

Puppycorn suddenly appeared next to Unikitty, wearing roller-skates, a three-piece disco suit, gold chains, and an afro wig, "Sorry, little bro." she said, causing him to moan sadly while skating away, "Come on just take one-" Unikitty said while handing Master Frown the éclair again.

"No." he said while pushing it away.

"Open up the tunnel, here comes the train. Choo-choo!" she said while moving towards him again.

"Knock it off!" he said while slapping it out of her paw.

"Oh, what's that in your ear?" Unikitty said while reaching into the hood of the Doom Lord's cloak and pulling out the same éclair.

"What is it?" he asked.

"Come on, one bite." she said.

"Look, Unikitty, if I was trapped on a deserted island, and had nothing to eat but that éclair, I'd eat my own clothes first. And not just my cloak." Master Frown said before walking away.

"But it's good for you." Unikitty said while following him.

Upon hearing this, Master Frown turned and faced her again, "Good for you!? That thing is type-2 diabetes wrapped in fried dough!" he shouted.

"No, Master Frown I meant... Good for your soul." Unikitty said while scene behind her changed to that of a cloudy blue sky. She also gained a halo and angel wings as she smiled.

"Oh, please. I have no soul." Master Frown said as the background behind him changed to that of a fiery hell-scape with evil laughter sounding from somewhere. He gained a shocked look on his face as the scene faded away before he started walking away again.

Unkitty started to follow him again, "Come on just taste it." she said.

"No."

"A lick?"

"No."

"One bite?"

"No." Master Frown said before walking into the park bathrooms.

He opened a stall door to be met with Unikitty's paw, offering him the éclair, "Just smell it." she said.

"If I didn't want it anyway, what made you think that I would want it more in here!" he said before slamming the stall door shut.


Later on in Frown Town, Master Frown was about to put his trash into one of his neighbor's trash cans, only for Unikitty to pop out and offer him the éclair, "Try it." she said.

"No." Master Frown said while dumping the trash on her and closing the lid.

He then turned around to find Unikitty standing there, "It's delicious."

"Unikitty, how long are you going to keep this up?" Master Frown asked before hearing a clicking noise. He looked down to see his and Unikitty's arm locked in handcuffs. She simply handed him the éclair once more, "Oh, give me that!" Master Frown said while taking the éclair from her. He looked at it before stating, "If I die, you're not invited to my funeral." The Doom Lord looked at the treat in front of him before he opened up his mouth while moving the éclair towards him. He then bit off a small piece of the eclair's dough before swallowing it with a disgusted look on his face.

After a moment, he got a huge smile on his face, causing Unikitty to smile with hearts in her eyes, "Why, this Rainbow Éclair is the most..." Master Frown began to say before his face reverted back to his usual angry expression, "Horrible, putrid, indigestible, grossest, abhorrent, and most disgusting excuse for a pastry, that has ever slithered down my throat!" he said while Unikitty's expression changed from happy to sad, the hearts in her eyes turning into mushroom clouds.

"But..." she started to say.

"And I curse this Rainbow Éclair, and all who enjoy them, to a cold, hard, lonely, and well-deserved grave!" Master Frown said as he lifted the éclair up high before throwing on the ground, where he proceeded to stomp on it repeatedly much to Unikitty's horror. He finished his tirade by slamming a tombstone down onto the éclair with the word 'Rip' followed by a picture of it.

"But Master Frown, the Rainbow Éclair is an absolute good. No one can resist it's tasty charms." Unikitty said.

"Everybody but me." Master Frown said.

"Are you sure?" Unkitty asked.

"Does this look unsure to you?" Master Frown said while pointing at his face, showing a expression between serious and depressed.

"No." Unkitty said.

"Good, now go spread the word." Master Frown said, pointing Unikitty away. She then sadly flew away back to Unikingdom. After watching her leave, Master Frown suddenly threw the tombstone out of the way before digging into the place where he threw the eclair down, finding it completely ruined and covered with dirt, "Still alive!" he said before shoving in his mouth and eating it. "So delicious, all these wasted years!" he said while crying before licking the dirt where he dug the éclair out from. He suddenly shot up in the middle of his licking with a realization, "I gotta have more. I gotta have more!" he said before sprinting towards Unikingdom with a hungry look on his face.

After reaching the castle, he placed his back against its walls, "But wait!" he said before slinking his way along the side of the castle and peeking into the kitchen window where Unikitty was making more of the eclairs, "I can't let her find out how I really feel. I gotta sneak one, just one. Then I'm off this stuff for good." he said to himself.

"Well, I hate to admit it, but I guess some people just don't like Rainbow Eclairs." Unikitty said before continuing to fill the eclairs with pink cream. Master Frown peeked through the window and gazed at them.

"Hey, uh Unikitty?" he said while letting himself be seen.

"Oh, hi Master Frown. What brings you here?" she asked.

"So, I told Brock about those eclairs and he wants to try one. With extra cream and bake it well done OK?" he asked, making the demands with a little drool coming out of his mouth.

"Coming right up! By the way Master Frown, I just want to say I'm sorry for bothering you so much today. I was only trying to make you happy." Unikitty said as she continued to bake the eclairs on a portable electronic baking sheet.

Master Frown didn't hear the rest of what she said, for he was too busy being focused on the eclairs. When Unikitty lifted the top off the baking sheet, the scent found it's way to the Doom Lord's nose, going sentient and kissing him before dissipating into thin air, "Don't go..." he said.

"But whatever you're opinion shall be, I accept it." Unikitty said while handing him the éclair. Master Frown then opened his mouth and attempted to bite into it before it was pulled away, causing him to face-plant onto the still hot backing sheet, "Well, better get this to him. I want to see the look on his face when he takes that first bite." She then walked away while Master Frown lifted his now burned face of the baking sheet.

Unikitty then walked out the front door of the castle and called out, "Brock, I got that Rainbow Éclair you wanted! Freshly made just for you! Brock?" She looked around for a bit but wasn't able to find him, "Huh, guess he had to leave." she concluded.

"Hey, uh, maybe I could leave it out here for him in case he comes back." Master Frown offered.

"Nope, a tasty treat this good should be eaten fresh and... Well, I hadn't had my sweet fix in the last twenty minutes so-" she said before eating the éclair herself, causing Master Frown to gasp in surprise, "Well, as I always thought, he has great taste." she said with her mouth full. Master Frown watched as Unikitty enjoyed the éclair, tears welling in his eyes. "Well, that was satisfying. Now to relax." Unikitty said before walking back inside the castle, leaving Master Frown to sulk on the ground.

"What am I supposed to do? Eat one out of the garbage?" he said.

At that moment, Dino Dude rolled by with a half-eaten Rainbow Éclair in his hand and a protruding belly, "I really wish I could finish this, but I'm so darn full. Oh well." he said before throwing it in a nearby trash can and rolling away.

"I had to say garbage, but OK!" Master Frown said before rushing over to the trash can and finding the éclair in the middle of the trash pile. He then dug his head into the trash can to eat his find before pulling back up with his mouth full and a satisfied look on his face. He then realized a problem with the taste as he looked down and saw that all the trash was gone, but the éclair was still in the can. He stuck his tongue out and wiped off the trash that was covering it before taking the éclair out.

Suddenly, Unikitty came out of nowhere and swiped it away from him with a gasp, "Oh no! What's this doing here? This éclair should be cremated!" she shouted before bringing it back into the castle and throwing it into the furnace, crying afterward and turning into Sad Kitty. Master Frown joined her, a sad look on his face, "I know you didn't like them, but if feels so nice that you came." she said before walking off and leaving Master Frown to cry himself.


That night, Master Frown was crying while sitting in his living room until a knock sounded at the door. He went over to answer it and found a giant Rainbow Éclair waiting for him, causing him cry out in happiness and kiss it. He then took it out to dinner at a fancy restaurant, which led to the both of them watching over a smaller éclair wearing a cloak, which led to them both sitting in rocking chairs in their old ages. "Mmm, honey..." Master Frown said in his sleep before waking up and realizing it was dream, causing him to groan in frustration, "I have got to get my hands on a Rainbow Éclair, and no one is going to stop me!" he said before running out of his apartment.

When he was at Unikitty's castle, he snuck in through the kitchen window, being careful as to not make any noise, "Now then, if I were Unikitty, where would I keep some tasty eclairs?" he said.

At that moment, the kitchen's oven beeped a few times before saying, "Tasty Eclairs: Password accepted." before sliding up to reveal a secret passageway leading downstairs.

Master Frown gave a smirk before heading down the stairs, eventually coming to a large open room, "There it is." he said as he gazed upon a large metal vault that read 'Éclair Vault' on the front. He walked toward it and opened the big door to reveal the vault's contents, the walls and floor were lined with Rainbow Eclairs. He picked one of them up and prepared to bite into it before a voice interrupted him from behind.

"Master Frown?" it turned to be Unikitty, dressed in her pajamas and standing in the doorway, "What are you doing here?" she asked.

Master Frown turned around in panic, hiding the éclair behind his back, "Unikitty! Uh, what are you doing here?" he said while mistakenly pointing the éclair at her before realizing his mistake and hiding it again.

"I always come down here 3 AM every night. This is mostly the time when I check the cream volumes, what are you doing down here?" she asked.

"Well, um I-I..." Master Frown stammered.

"And why is éclair vault open?"

"U-um, w-well..."

"And why are you holding an éclair behind your back?"

"I-I-I, U-um, w-w-well..." Master Frown continued to stammer and sweat profusely while Unikitty asked more questions.

"And why are you stammering? And why are sweating so much? And why do you look so hungry? And-" she said before she stopped herself. Her face then scrunched up in a knowing smile.

"No wait, it's not what you think!" Master Frown said while Unikitty put her hands to her hips, "I'm telling you, there is a reasonable explanation for this! Are you paying attention!? You better be listening to me Unikitty!" Master Frown shouted as he grew more frusterated.

"You like Rainbow Eclairs don't you Master Frown?" Unikitty said in a half-mocking sort of tone.

Master Frown just stood there for a moment before suddenly bolting into the vault and locking the door behind him, "Yes! I admit it Unikitty! I LOVE Rainbow Eclairs!" he shouted before started scarfing down eclairs by the handfull.

"I knew it all along Master Frown, no one can resist a Rainbow Éclair." Unikitty said while standing outside the vault. Meanwhile, Master Frown was having the time of his life, eating up all the eclairs he could get his hand on. "Uh, Master Frown? How many are you eating? Master Frown!?" Unikitty shouted with a panicked expression. Master Frown wasn't paying attention as he dived into piles of eclairs before eating them, ate them in groups of three, lined them up on his arm before letting them slide into his mouth, and even sliding across the floor while he ate them.

Unikitty started to bang on the vault door to get the Doom Lord's attention, "Master Frown, you can't eat all those eclairs at the same time! MASTER FROWN!" she shouted.

Master Frown eventually stopped eating, "What's gonna happen? Am I gonna blow up?" he asked with a snarky tone.

"No, worse! It'll go right down to your thighs!" she said.

"My thighs?" Master Frown asked before looking down and finding that his thighs did swell up in size during his binge.

"And then you blow up." Unikitty said right before the castle exploded.

Later on, an ambulance was driving through the kingdom, carrying Master Frown inside. He had been reduced to just his head, which was attached to a medicine bag. His body parts were being carried by a paramedic inside of a bucket, "Yeah, I remember my first Rainbow Éclair." he said.