Science-fiction enthusiast Hailey Anne has a supernatural encounter with what she thinks is an alien and a "Space Watch," but turns out to be a Yo-kai named Usapyon, and a Yo-kai Watch.
Usapyon is in for quite a shock when he seeks out an electric Yo-kai's help to power his rocket! Jibanyan's day off turns into a pulse-pounding nightmare! But Komasan still knows how to relax with a day at a pottery studio.
Hailey Anne and Usapyon put safety first in their quest for a Yo-kai who can help power the newest segment of their Bitty RoKit, while Nate meets a Yo-kai who is positively overflowing with pride! The ever-helpful Komasan does his best to help Robonyan adjust to the expectations of modern viewers.
Nate's desperate for cash, but a secret mission to help his mom shop may just be the solution he needs! Usapyon drags Hailey Anne on a quest for Yo-kai help keeping their rocket cool. Komasan's new cab service picks up one very lost dog.
It's finally time to blast off with Hailey Anne and Usapyon! The rocket is complete, and Hailey Anne has invited the guest of honor: Dr. Hughly. Can Usapyon restore his friend's confidence with a demonstration of Yo-kai power? That's not all! After the launch, Hailey Anne convinces Usapyon to open a Yo-kai detective agency to solve Springdale's Yo-kai mysteries.
Nate finally has a day to spend with his parents, but something is up with his father! A rough day out is nothing compared to a new Yo-kai who forces Nate to relive his most embarrassing memories, though! Komasan's cab rides again, too, and this time he's out to teach Dracunyan how to be just a little less scary.
The gloomy Yo-kai are fainting from embarrassment when someone dresses them up in the most garishly colorful fashion imaginable! Everything in Nate's house seems to break all at once! Nate learns why classic Yo-kai don't come out at Halloween! It is a week of zany adventures in Springdale!
It's a double dose of detective doings this week as Hailey Anne and Usapyon meet their match! First, they encounter a Yo-kai whose thorns threaten to stick bystanders on the streets, but then they meet a true rival in a master thief of Yo-kai treasures! Nate, however, must contend with the hip hop sensation sweeping the nation: Lil Kappa!
Even Yo-kai have to eat, and Komasan is ready to try his hand at running a Yo-kai restaurant! Meanwhile, Nate meets the Yo-kai responsible for people being down on themselves, and Hailey Anne and Usapyon have another chance to catch their phantom thief nemesis!
Nate and Jibanyan have big holiday plans, and neither could be more excited. There's just one problem: a massive blackout affecting even battery-powered devices has plunged Springdale into darkness! Nate and Jibanyan must find the source of the problem and fix it before their big plans go up in smoke!
It's a week of bad hair styles and thieving! Nate just can't catch a break when a Yo-kai barber shows up with outlandish ideas about good fashion. Then, when he tries out the new and trending "static boy" hairstyle, things don't quite work out, either! Not that Hailey Anne and Usapyon have it any easier. Carl SanFantastico is back for yet another heist!
Whisper gets dressed up for a special episode revealing the secret origins of the show's main characters! This Yo-kai butler extraordinaire is eager to tell the origins of Nate, Jibanyan, and most importantly, himself!
Komasan is all set to run a daycare with the help of his little bro, Komajiro. Can they set a good example for the little ones? Meanwhile, Hailey Anne and Usapyon find themselves chasing Carl SanFantastico once more as he prepares to steal another Yo-kai treasure! Nate's quiet plans take a loud turn when a Yo-kai party animal shows up to raise the roof!
Carl SanFantastico's biggest heist begins, and the Hapyon Detectives are more determined than ever to catch their man! A new Yo-kai makes Katie frighteningly bossy, and Nate is going to need all the help he can get to put a stop to it. But one isn't enough, and a second Yo-kai shows up to cause trouble, turning everyone around Nate into shameless cheaters! How can he stop this Yo-kai conman?
The rumor mill is in overdrive this week. Injurnalist is seeking the story to land him on the front page, and Mr. Blockhead wants the whole world to hear every rumor he comes across. How will Nate manage these rumormongers? Hailey Anne is ready to make the perfect chocolate, and Usapyon will have the honor of being the taste-tester for the wild homemade chocolate recipe she tries out!
It's the Yo-kai's biggest music event of the year, and Nate, Whisper, and Jibanyan are going! This Yo-kai extravaganza is sure to bring the house down as everyone's favorite Yo-kai team up to give thrilling musical performances! Who will be the best band in this amazing show of Yo-kai talent? Meanwhile, Hailey Anne and Usapyon are handed one of their strangest cases yet by Dismarelda!
Nate learns to be careful what he wishes for when the wrong word has him transported to the Yo-kai World for a new Yo-kai's big racing event! Can Nate keep up with the Yo-kai contestants, as well as a surprise entry from Springdale?