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Keisuke Amano (Japanese: 天野ケースケ Amano Kēsuke) is a minor character in the 4th Yo-kai Watch movie, Yo-kai Watch Shadowside: The Return of the Oni King and a major protagonist in the Yo-kai Watch Shadowside animation series.

He is the son of Nathan Adams and Katie Adams, and thus He is the younger brother of Natsume.


Physical Traits

Keisuke is a young boy with brown eyes and hair.

He wears a blue, short-sleeved sweater, with a yellow star motif on the upper left side, white pants, and dark blue loafers, which have smaller, orange star symbols on them.

In some episodes, he also wears a light-blue, collarless polo shirt with a white trim that is unbuttoned at the collar, a pair of orange pants, and the same loafers.

Also in some episodes, he wears a blue, white and yellow t-shirt, green cargo shorts and again the same loafers

During the colder seasons, Keisuke again has three more sets of clothes.

In the movie and in some episodes, he wears a navy blue sweater with white trim and white stripes around the arms. A large white "K" is printed in the upper left side. He wears a pair of green cargo pants, black socks, and the white loafers.

He alternates with a light blue sweater with white and yellow stripes across the chest and arms. Another pair of green cargo pants, orange socks, and the same loafers.

He has another outfit: a dark blue hoodie over a red shirt, brown pants, and the same loafers. 


Keisuke is a somewhat cowardly, easily startled boy. He initially refuses to believe in the supernatural and considers the group that his sister has formed with Touma and Akinori a cult.

However, he does warm up to the idea of Yo-kai existing and shows courage when it's needed.

He is shown to be very stubborn and childish, and sometimes similar to his father as well. 


Human Relationships

Natsume Amano

Keisuke is Natsume's little brother. The two both care for each other, but can be shown to argue a lot.

Akinori Arihoshi & Touma Tsukinami

Keisuke is shown to be on simple terms with the both of them. It's implied that Akinori and Keisuke's relationship is a more simple one, while his relationship with Touma is more of a one-sided admiration, with Keisuke being the one who admires Touma.

Kouji & Tank

They appeared to be close friends with Keisuke similar to Nate's relationship with Eddie and Bear.

Nate and Katie

Keisuke is Nate and Katie's youngest son. He strongly resembles his father (Whisper even stated that Keisuke looked familiar to him).

Yo-kai Relationships

Bourei Banchou

Prior to SS001, Keisuke had known Bourei Banchou as his old friend Kenji. Kenji was the one who taught Keisuke that "True men have courage". However, Kenji was caught up in an accident and lost his life. Upon seeing the wristband on Bourei Banchou, Keisuke knew that he recognized the yo-kai from somewhere before.


When first meeting Keisuke, Whisper noticed that there was something familiar about him (despite not knowing that Keisuke was the son of his friend Nate). Their relationship is akin similar to what Nate and Whisper had 30 years ago.



Keisuke and Junior have a relationship similar to that of Nate and Jibanyan.

Jaou Kaira




Keisuke as a Kaodeka Oni.

Keisuke plays a minor role in Yo-kai Watch Shadowside: The Return of the Oni King.

Both he and his mother are turned into Kaodeka Oni by the Onimaro, which is one of the reasons Natsume sets out to stop the Onimaro invasion.

Yo-kai Watch Shadowside anime

Keisuke starts out as a young 5th Grader who has never believed in anything supernatural.

However, after following his sister Natsume, who has been coming home late recently, he discovers their Yo-kai Detective team and becomes involved in strange incidents related to Yo-kai.


"Keisuke" is a masculine Japanese name that is similar to "Keita" and "Keizou", continuing the naming scheme of prominent male characters in the Adams family.


  • His voice actress, Haruka Tomatsu, also portrayed his father Nathan when he was his age.
  • The star symbol on his shirt also appears on his father Nathan's shirt and has been often used to represent Nathan in the past.
  • In SS001, SS005, SS008, SS019, SS023, SS034, SS039SS047; Keisuke wields the Yo-kai Watch Elda.

Start a Discussion Discussions about Keisuke Amano

  • About Keisuke

    12 messages
    • TheUltraReconSquad wrote:hey should get a yokai but who... Perhaps Shadowside Blazion or Blizzaria? NO DEFINITELY Blizzaria since she is a cute...
    • at least he doesn't blame everything on yo-kai like his father did. the yo-kai watch elda has the ability to change its wielder. natsume...