At the castle in the City of Quality, Krome and his brothers are messing around inside the castle restricted premises, except the "Library of Ancient Times". Where all of the old books from the beginning of time are in there, Krome's Father, King Ascaus, collected this book in order to protect the books from those who tempted to use them as their own, mostly from syndicates and rebellions. Luckily, his sons was blessed from their Goddess mother, Chrona. Chrona is a Valkryie from Asgard, daughter of Odin and was one of the Sisters of Fate. But she left her duty and live as a mortal, even Odin doesn't like Ascaus too much.
But one day, Krome wasn't going to let those book rot in a basement for all eternity. So he and his brother, Masuko and Hikaru, went down this sacred library, even when their professors forbid them dozens of time. So, he asked Hikaru, his young brother, to break down the locks with his scythe, which he did in a single stroke, I guess the library's lock wasn't that powerful against a dark scythe. So, the three light up their lamps and went down the stairs, taking a step slowly and closing the behind like it wasn't opened at all.
Meanwhile, at the throne room, the King and Queen dance, every once in a while the highest royalties got to have fun, and at the same time, they talked interesting about the hidden books of the Sacred Library Room.
Chrona: "Tell me, am I getting better at this, my king?" She smiled, following by the Ascaus' lead.
Ascaus: "Yes, everytime we do this, my love." He replied. "So, you wanna know what's inside the forbidden library?"
Chrona: "Yes, since my father, Odin, really wanted to know when his nuisance crows told him about that." She sighed in disbelief.
Ascaus: "Well, I don't want to get struck by lightning again, so I will tell you all about it..." He said in a distress voice, almost losing their dance rythm. "All of the known book that we find and took from battle fields are kept inside a hidden part of the castle, where no one but me could find it."
Chrona: "Which is where, Ascaus?"
Ascaus: "Where no one dares to look, the torture chamber, behind the iron maiden, if you look behind, you'll find a passage, you'll find locked, metal door at the end with impossible locks, that no men nor animos could break in... unless if it's a weapon that is really strong and sharp like Hikaru's scythe." He coincidentally said where the three young wolf are right now.
Chrona: She giggled at the king's answer. "You should have your lock a magic diagram, that way, no one can really open it."
Ascaus: "Magical diagram... oh, no!!" He cut off the musicians to play and looked around. "Tell me, Chrona, where's the boys?"
Ascaus realized that Krome and his brother heard rumors about the library and went off to find it, after they've been told not to go there, they still want to find the room. Without wasting time, Ascaus ordered the maids and guards to search every corner of the castle, while Ascaus and Chrona went down to the torture chamber as fast as they can.
Meanwhile, at the Sacred Library, the three brothers light up the chandeliers and looked around, the place was really big and full of old literatures and documents about every city they've conquered or cooperated with the city like Spell Books, Autobiography, even Ascaus old Men's Magazine that Chrona wanted to throw it away. "Wow, I'd never thought that it was this big." Krome said in surprise. He wonder off to the Aisle of Spell Books, where he found the First Book of Magic while his two brothers are looking around, even Masuko is a bit tempted to look at his father's magazine. At the entrance, the king and queen quickly went down the stairs, they've know that they're here because the lights are on. Krome picked up the big book and open it up, it flashed, causing a blinding light, he's at the page of Transformations, written in ancient language. Luckily, Krome learn the tongue of his grandfather and read the first spell in it, "Reverse of Life." He was interested to try it out so he went back where they came and tried to the read them slowly. When he got back, he saw Masuko and Hikaru, being pinched at their ears by Chrona, who was really furious about the three.
Chrona: "What... are you three doing here?! Didn't your father told you to not to go down this place..." She looked at the magazine. "And didn't I told you throw those away, Ascaus?"
Ascaus: "Honey, let's talk about those later." He walked to Krome and reach one hand to him "Krome, give me that book, right now, that book is dangerous and you don't know how to master the Book."
Krome: He was acting childish and refuses to give it back. "No, I don't too! You always telling me what to do and not to do." He turned on his back to his father.
Ascaus: "Listen, this is for your own good, that book is too much to handle, even your grandfather almost got killed by this book."
Krome: "No, I'm taking this book with me and there's nothing you can do!" He stick his tongue out to his father and ran off with the Book.
After leaving them down on the library, he went back to his room and locked himself inside. He then lied down his bed with the book with him, wiping his tears on his face. "I wish was a baby again... that way they weren't so hard on me..." He mumbled and soon fell asleep, hugging the book, but little does he know, the spell he read was activated. A small hammer popped out of the air and bonked Krome's head, turning the clock that's on the hammer, going counter clockwise from 18 years old, he soon started shrinking and his clothes along with him. After the clock hit 10 years old, his underwear turned into a training pants, crinkling as he moves around. The hammer is going clockwise and hit the 5 years old mark, Krome whimpered and hold his training pants, a warm, wet feeling in his crotch, making his shorts form a wet spot on his front and also wetting the bed. The clock's almost finish and finally hit the 2 years old mark, Krome shrinked more and his training pants turns into a thick diaper, his shorts make it noticable, the clocked stopped moving and the hammer lean itself on a cabinet and stayed there.
Later that night, Krome started to wake up, yawning cutely on his new cubby form, he mumbled a bit and scratches his bum. But it was a rude awakening for the young wolf cub, he looked down and saw his shorts, it was really soak, he jumped a bit and blinked, "Wha happened hewe?" He said in disbelief, he's even speaking weird as well. If it can get any worst, it does. Krome's tummy started to grumble hard and he held it tight. "W-wha dah?" He said, squirming and farting softly on his soak bed, he raised both of his legs up high and grunts, he got wide eyed and exactly knows what's going on; he's trying mess his diaper like he did when he was a baby. He tried to hold it on and feels like the mess is so big, like what happened when he ate alot in his 13th birthday, eating his mom's famous macaroni soup that he loves to take seconds. But this time it's way worst for him, he's not yet potty trained before he was 4 years old, he grunted softly and whimpers, letting out a few to relieve himself but that's not gonna stop his tummy, he tried to hold after the short release but his body just gave in lost all of his potty abilities, leaving him to uncontrallably push out all the mess inside of him, making him all relieved but filled with almost maximum capacity that once called his underpants. Feeling both relieved and uncomfortable, he got nothing to do but cry about it, and outside it's about to get worst. "Krome, it's me, your mother, can I please come in?" Chrona said knocking on the door, she heard someone crying in the room and open the door, worried that his son is still upset. But to her surprise, she was shocked and gasped by the smell of his son's diaper, covering her nose quickly. "W-what happened here, Krome?" She said as she approaches her son and picked him and the book up. "What did you do to the book and why do you smell?" She asked nervously, knowing that something gotten wrong with one of spell in the Book, but as she stand up, she saw the hammer but she ignores it, knowing it might be a weapon that his son bought and went out his room to the hall to get help.
Chrona: "Hmm... what to do with you." She looks around and found Loretta, the Master Maid of the Castle, calling her from dusting an old vase.
Loretta: "Yes, miss Chrona?" She said as she approaches them. "What was that smell?"
Chrona: She show a sad Krome and his very full diaper, sagging on his waist. "Him, apparently some kind of spell, check for Krome's old diapers if it still in the attic, Loretta."
Loretta: She curtsie to Chrona. "Yes, madam." Disappearing out of sight.
Krome: "I still don't know how she does that..."
Chrona: Put back Krome in her arms. "Now, let's go to your father and see this for himself."
Krome was a bit nervous to confront his father, knowing he did disobey him for taking the book with him to his room.
At the throne room, all of the royal guard, Masuko and Hikaru are stopping themselves from making a giggle at Krome and Ascaus still a bit stunned what become of his middle son, twitching his eyebrow in disbelief. "You must be joking, aren't you my dear?" Ascaus said to Chrona, gripping the book tight in anger, stopping himself from hitting the book on his son's little head, thinking something weird will happen again if he did. But his patience triumphs and sighs, sitting in his throne in shock. "Why do I even took this book from that place..." Ascaus said as he shakes his head. "I know this is just an accidental spell, but we have to know what to do about Krome." Chrona replied, while Krome is hiding behind his mother's legs, in a new clean, thick diaper that he wore in his potty training years. "I knew I kept those diaper for a reason..." She said as she picked up Krome and stroke his hair.
Chrona: "Tell me Krome, what spell did you recited?"
Krome: "Um... I didn't actually read it in my room..." He said as he tilt his head a bit.
Ascaus: "Okay, now everybody, family meeting, now!" He shouted, giving their guard to leave except for Masako and Hikaru.
Masako: "O-okay..." He said in a giggle. "This is just too rich..."
Hikaru: "Y-yeah, he he heh... Now I'm the oldest now..." Laughed as he see his big brother's condition.
Ascaus: "Oh, just give your brother a break, I think he's been punished enough..." He said as he walk slowly to Krome. "Look, I know you're mad right now, but why did you have to be baby?"
Krome: "D-daddy, I didn't do this, I cried myself to sleep with book..."
Chrona: "I think he's telling the truth, dear."
Masako: "Well, father, I think you need someone to deciper the book in order to how turn back..." Rub Krome's head "...this cute, little baby to normal?"
Krome: He puffs his cheeks and pulled Masako's whiskers "I'm not cute!"
Masako: "Ow, ow, ow!! Hey, that hurts, I just got it regrown after you almost sizzled me with your spell!"
Krome: He giggled and let go of the whiskers. "Sewve you wight!"
Ascaus: "Okay, now, I'm gonna hire someone for this job." He said showing the book. "That way, I can cure my son from his "Regression" Spell." He said walking out of the throne room thinking. "I thought I was done with the diaper duty at last..."
Krome was really guilty that he read the First Book of Magic, knowing he gave his father a migraine, luckily, his mother was happy that she can finally take care of his little cubby wolf again. Though, expecting that his nuisance brothers and over-reacting maid around, it would be hard to be the cub again, forever cursed like that even.