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Keita發現妖怪的存在，並在鬧鬼的十字路口與貓型妖怪Jibanyan成為朋友。

Keita (Nate) is introduced into the world of the Yo-Kai when he frees the Yo-Kai butler Whisper and receives the Yo-Kai Watch, just in time to save his parents' marriage from the unintentional disruption of the Yo-Kai Dismarelda with her husband Happierre. Whisper explains more of the Yo-Kai to Keita just as they find an intersection haunted by the cat Yo-Kai Jibanyan, who used to be a living cat until he got hit by a truck, now wanting to prove himself to his former owner; however, Keita's kind words soon make Jibanyan finally believe in himself, and the two become friends, with Keita receiving Jibanyan's Yo-Kai Medal as the symbol of their friendship. (Source: Wikipedia)

Whisper 調查河童，而 Nate 則處理 Tattletell 揭發的 Katie 的秘密

Nate tells Whisper that people are talking about a specific Yo-kai, which Whisper says is a kappa; they try to find it, while the kappa Yo-kai Walkappa tries to get their attention. Nate's day at school is disrupted by the Yo-kai Tattletell, who possesses his friend Katie and makes her reveal a personal secret that embarrasses him. Later, when Katie is feeling down and won't say why, Nate uses Tattletell to figure out what she is hiding. (Source: Wikipedia)

Whisper 討論 Noko，Nate 則遭遇 Manjimutt，隨後調查 Roughraff 對 Eddie 的附身

Whsiper talks about the Yo-kai Noko, and Nate sees it, but Whisper doesn't. Nate and Whisper meet the man-faced dog Yo-kai Manjimutt, who is soon arrested. Later, when Eddie begins to act like a rebel, Nate and Whisper discover he is being possessed by the Yo-kai Roughraff. While in prison, Manjimutt finds a want-ad for a barber. (Source: Wikipedia)

Nate在調查Hungramps、Wazzat和Manjimutt時獲得了Yo-kai Medallium

While Nate cleans his room, Whisper gives him the Yo-kai Medallium to store his Yo-kai Medals. Nate and Whisper discover the Yo-kai Hungramps is at the local convenience store, making people unnaturally hungry. Later, Nate and Whisper discover that the reason many people in class are all forgetting things is because of the Yo-kai Wazzat. Manjimutt's barber shop is ruined because everyone thinks he is a dog groomer. (Source: Wikipedia)

Manjimutt的攝影失誤與Illoo的幻象

Manjimutt's newest venture, a photographer, is disrupted when his client discovers he is not the one who was supposed to photograph her. On Valentine's Day, Nate and Whisper discover that Eddie and Bear are under the spell of the illusion casting Yo-kai Illoo. Later, when Jibanyan moves into Nate's house, Nate must save him and Whisper from being rid by an exorcist who is hired after Nate's parents begin to realize Jibanyan's behavior. (Source: Wikipedia)

Manjimutt的麵包店掙扎、Blazion附身、Negatibuzz牙醫，以及Signibble的睡眠派對干擾

Manjimutt tries an apprenticeship at a bakery, but cannot overcome his canine urges. During a park clean up, Nate and his friends get possessed by the Yo-kai Blazion, who makes them unusually fired up about the task. Nate gets a sore tooth and is sent to a dentist who is currently depressed because of the Yo-kai Negatibuzz. Bear and Eddie sleep over at Nate's house, and the three secretly watch a late night TV show, but their plans are later disrupted by the electricity-eating Yo-kai Signibble. (Source: Wikipedia)

金門犬 第6集，小松丸登場，以及未見過的妖怪現身

Manjimutt 好萊塢闖蕩，Fidgephant 和 Hidabat 搗蛋生事

Manjimutt decides to go to Hollywood to become a movie star, but is apprehended before he can leave the country. All the boys at school become overwhelmed with the urge to urinate, which Nate and Whisper discover is because of the Yo-kai Fidgephant. After Nate and Whisper return home, they find that Jibanyan has locked himself up in Nate's room, and Whisper realizes it must be because Jibanyan is possessed by the Yo-kai Hidabat. (Source: Wikipedia)

Komasan 偕同弟弟 Komajiro 歸來，Nate 則遇見瀕死的 Cadin 與未來的 Robonyan。

Komasan's younger brother Komajiro comes to the city. After a failed treasure hunt, Nate and Whisper meet the cicada Yo-kai Cadin, who soon realizes that he will die within a week's time because he was not allowed to reincarnate as a cicada. Later, Nate and his Yo-kai companions meet Robonyan, Jibanyan's robot self from the future. (Source: Wikipedia)

Komasan 適應城市生活，Nate 遇見 Buhu，Shogunyan 抵達

Komasan soon begins to realize that Komajiro is adapting to city life much faster than he anticipated, even picking up city lingo. After a spate of bad luck, Nate discovers he is being possessed by the Yo-kai Buhu, but she just needs his help to get back on her own feet. After Nate has collected many Yo-kai Medals, the Yo-kai Medallium summons the Legendary samurai Yo-kai Shogunyan. (Source: Wikipedia)

Komasan 在閘門前掙扎，Nate 面臨揮霍與拒絕，Manjimutt 則身陷囹圄。

Komasan is stymied by a subway turnstile, until Komajiro realizes that he needs a passcard to get through. Nate, Bear and Eddie head to the mall to buy a video game (comic book) they have been saving up for, but are unable to purchase it when the Yo-kai Spenp makes them spend their money frivolously. Later, the Yo-kai Noway continuously makes Nate deny requests and favors for others at school. Manjimutt is now in prison on Alcatraz. (Source: Wikipedia)

Komasan向Komajiro解釋手機，Cheeksqueek惹出麻煩，Manjimutt策劃逃跑

Komasan tries to explain the concept of cellphones to Komajiro, but Komajiro already has one and is going to meet his friends. While in class, Nate and Whisper discover the farting Yo-kai Cheeksqueek is up to no good. Manjimutt plans his escape from Alcatraz, but gets waylayed. (Source: Wikipedia)

Komasan 造訪速食店，Nate 與 Yo-kai 共舞，Manjimutt 策劃與 Sam 一同逃脫

Using human disguises, Komasan takes Komajiro to a fast food restaurant, but while Komasan is overwhelmed by the choices, Komajiro buys his lunch easily. Nate and Whisper discover that Bear and Eddie are possessed by the Yo-kai Chatalie, who makes them brag and boast about themselves. During a physical education class on dancing, Nate dances well because of the dancing seaweed Yo-kai Wiglin, Steppa, and Ryth, but they keep possessing him during the school day. Manjimutt plans to escape with what appears to be a talking teddy bear named Sam. (Source: Wikipedia)

Komasan 造訪 Springdale 高塔，Nate 的母親正面臨 Dazzabel 的影響，Manjimutt 則試圖逃脫。

Komasan takes Komajiro to the giant Springdale tower, and is overwhelmed by the height, but Komajiro is unimpressed, at least until Komasan discovers a shooting star, impressing his younger brother once more. Nate's mother is suddenly overcome by the desire to dress gaudily for Parents' Day because of the Yo-kai Dazzabel, and the only way to counter her is with the gloomy and dull Yo-kai Dimmy. Manjimutt leads a team of other inmates on an escape attempt, but all is not as it seems. (Source: Wikipedia)

第二季的Komasan夜店驚奇與各種Yo-kai意外

Komasan joins Komajiro for what he thinks is a festival, but is instead a night club where Komajiro is a popular regular known as K.J. and he has a human girlfriend. At the local hot spring (sentou), Nate and Whisper discover the Yo-kai Sproink is making the water incredibly hot. Later, the Yo-kai Babblong possesses Nate's homeroom teacher, making class unnecessarily long, and soon possesses Katie. On Alcatraz, Manjimutt finds friendship with an inmate named Charlie, until he is approached by a more imposing inmate. (Source: Wikipedia)

黃金週妖怪附身、小松菜夜店與Manjimutt監獄邂逅

The three main characters try to enjoy a spring break (Golden Week) trip with Nate's parents, but they become possessed by the Yo-kai Peppillon before they even get out the front door, and later encounter the Yo-kai Drizzle and Mirapo during the trip. Komasan helps Komajiro in a confrontation at the night club when everyone discovers he is from the countryside. Manjimutt discovers the other inmate is an undercover cop who is looking to get Charlie incarcerated further, as well as learning about Charlie being a homicidal maniac, and is pleased he may be able to get out early. (Source: Wikipedia)

Komasan在Dandai工作，而Yo-kai Cynake和Rockabelly則給Nate和Manjimutt帶來麻煩。

Komasan takes a job at the toy company Dandai as a janitor, and accidentally inspires the president to create a line of various toys and a mascot character that get popular, prompting Komasan's promotion. On Mother's Day, Nate's mother is possessed by the Yo-kai Cynake, who makes her upsetly unappreciative of her gifts. Later, when the wild trend of belly dancing with a strange face on the dancer's stomach that is taking the city by storm occurs in class, Nate and Whisper discover it is because of the Yo-kai Rockabelly. Manjimutt is happy he will be freed from Alcatraz, but is surprised when the warden accidentally frees another dog-like inmate instead of him, leaving him to Charlie's wrath. (Source: Wikipedia)

九尾在春谷鎮鎖定凱蒂，內特正面對鬼時間，小松則懷疑企業間諜活動。

The Yo-kai Kyubi arrives in Springdale to steal women's hearts through charm, and sets his sights on stealing Katie's heart next, but cannot seem to succeed. When Nate's mother tells him to stay in the house and wait for a delivery while she is out, his act of defying her order sends him and his Yo-kai companions into the Terror (Oni) Time, a dimension children are sent into if they do not listen to their parents, where the three are pursued by the powerful Oni Yo-kai Gargaros. Komasan's new ideas seem to be stolen by a rival company, leaving the president of Dandai suspicious of who is behind things. (Source: Wikipedia)

Komasan 第二季 第 3 集：妖怪巴庫與九尾的遊樂園大盜

Komasan helps Dandai's president get in touch with his daughter, again, because she is looking for a new dance craze. The fellas discover the Yo-kai Baku has put Nate's entire class to sleep only looking for a particularly tasty dream to eat. Kyubi attempts to steal Katie's heart at the amusement park, but is not prepared for the human world's thrill rides. (Source: Wikipedia)

傳說級妖怪現身，小松丸對付大天狗並與小次郎苦戰

With a new page filled, the Yo-kai Medallium summons Dandoodle, a Legendary Yo-kai who is irresistible to the ladies. Komasan is left in charge of Dandai while the president takes a vacation, but realizes he is beginning to lose touch with Komajiro. (Source: Wikipedia)

Nate和Whisper調查Katie突然的冷漠以及Komasan的咖啡店戀情

Nate and Whisper discover Katie is possessed by the Yo-kai D'wanna when she begins to give up on tasks suddenly. Everyone in class seems to be exhausted because the Yo-kai Insomni has decided to make them stay up all night and not fall asleep. Komasan happens to enter a coffee shop and meets the girl of his dreams. (Source: Wikipedia)

Komasan在浪漫與跟蹤之間徘徊，同時Nate尋求遊戲指導和肩部舒緩。

Komajiro gives Komasan the push to get to know the girl from the coffee shop, but is horrified when he learns the girl is being stalked. When Nate realizes he is not as far along in a video game as his friends, he asks the Yo-kai Duchoo to coach him to fool his mother into thinking that he has a cold and has to stay home. At school, Nate discovers that all his friends have sore shoulders because of the Yo-kai duo Ake and Payn. (Source: Wikipedia)

Komasan 第三季：愛與詩歌與咖啡杯 3 / Yo-Kai Tsumamiguinosuke / Yo-Kai Karakuri Benkei

Komasan tries to save the girl from her threat, but discovers she is simply a manga artist who was talking about her story when her manuscript is sent flying by mistake. Nate's mother prepares a large dinner for the family, but the Yo-kai Grubsnitch makes her eat it without her knowing. The mechanical Yo-kai B3-NK1 breaks the electronics in Nate's house in search for the "Hero's Screw" to make him more powerful. (Source: Wikipedia)

Komasan 第三季：愛、詩歌與咖啡杯 4 / Yo-Kai Nekurama Tengu / 真身現身！

Komasan learns that the manga artist wants to write a manga on youkai, and Komasan becomes conflicted if he should help her obtain the realism she wants. Nate and Whisper discover Nate's friends are possessed by the Yo-kai Tengloom when they become gloomy out of nowhere. Whisper praises the real Yo-kai Tengu, who he claims is a close friend, until they find him. (Source: Wikipedia)