Once upon a time, there were five tiny female terrier puppies who lived happily with their mother Rena, and their owner. The dogs had beautiful red coloring in their fur, and the mischievous puppies looked pretty much identical to each other.

Eventually, the pups were hastily put up for adoption when Rena died unexpectedly.

Sadly, nobody seemed to want them, and people just walked by uninterested, to the point where the owner was marking down his prices until he was basically giving them all away for free.

All hope seemed lost... until one day, when a man named Fuutarou Uesugi saw the sign and walked over out of curiosity.

The sisters fell in love with this handsome man at first sight.

Fuutarou himself was surprisingly overcome with how adorable and sweet these puppies looked.

The owner was thrilled that at last someone showed interest in giving one of these young dogs a good home.

Decisions, decisions. It was just so hard to pick between them! And so, Fuutarou figured...

Why adopt one when he could just adopt all of them together?

...Nowadays, he sometimes really wished he hadn't.

As the pups grew up, they turned into demanding, noisy, destructive, time-and-money consuming, spoiled dogs; they also developed distinguished personalities along the way. Either way, with all five of them together, they were certainly a handful.

Every night when he got back to his place from work, he knew the same things would happen. And ironically, every time, he wouldn't be prepared.

"I'm home." came his words after closing his front door behind him.

And in a split second, he was instantly bombarded with five greetings.

The eldest dog, named Ichika, trotted over and relaxedly plopped herself onto his shoe. She wore a yellow collar decorated with cute little hearts on it, and panted in a very relaxed manner. Being the oldest meant that she sometimes bullied and stole things from her younger siblings. In spite of being the most mischievous, she loved taking naps throughout the day, and she didn't mind that the area around her bed was surrounded by toys (much to everyone's and their feet's chagrin). Fuutarou's friends knew her as "the sleepy one".

The second eldest, named Nino, kept her distance a bit while yipping. She wore a purple collar with a butterfly pattern on it, and cared the deepest for her sisters, whether it be grooming their fur or trying to tidy up the place the best as she could before their owner came home. She was also initially the most disobedient and slowest to warm up to her new owner, fluctuating between hiding away in spots of the house or snarling and snapping whenever he put his hand too close to her (good thing dog bites healed pretty fast). Fuutarou's friends knew her as "the tsundere one".

The middle child, named Miku, slowly walked over, then sat up in a begging position. She was whining and putting on her best, biggest, saddest puppy-dog eyes. She wore a blue collar decorated with triangles, and was the most quiet and reserved of the pups. The poor thing was not the most active of dogs, even preferring to be sometimes carried over walkies. For some odd reason, whenever her owner put on the history channel on TV, she would sit right beside him and watch the show intently. Fuutarou's friends knew her as "the shy one".

The second youngest, named Yotsuba, could be the most distinguished among them. She wore a green collar with a four-leaf clover pattern on it, and was almost always smiling and wagging her tail. She was (as usual) yapping and panting and running all over the place and jumping up excitedly on her owner, never getting tired. She was the first to accept Fuutarou as her caring owner. The good news was, even though she wasn't exactly the brightest bulb of the pack, she was the most good-hearted among her sisters. Fuutarou's friends knew her as "the hyper one".

The youngest pup, named Itsuki, was perhaps the most "plain" among them. She wore a red collar decorated with yellow stars, and had the longest tail. Carrying her empty food bowl in her mouth, she looked up at her owner expectantly; among the dogs, she ate the fastest, and was capable of wolfing down LOTS of food at a time. She tried to be the most level-headed one among her older siblings, and she tried to seem more mature by following in Nino's footsteps, but was often too easily spooked and prone to running off from the slightest danger. Fuutarou's friends knew her as "the hungry one".

Even though Fuutarou equally loved all his dogs dearly, they were a loooot of work on top of his job. Good thing his little sister Raiha sometimes came over to babysit them (and Yotsuba and Itsuki were fond of Raiha the most).

Nobody ever wanted to trade this crazy life for the world.