TOUGEN ANKI: Nikko Kegon Falls Arc

What is TOUGEN ANKI: Nikko Kegon Falls Arc about?

TOUGEN ANKI: Nikko Kegon Falls Arc is a TV anime series planned at 12 episodes animated by Studio Hibari, adapted from a manga. It began airing in October 2, 2026 and is still releasing new episodes. AniList classifies it as action, mystery and supernatural. It continues from TOUGEN ANKI, which is worth watching first.

Synopsis from AniList, which credits REMOW. The summary above it is written by FreeAnime.xyz from AniList's data.

Themes AniList users associate with it: Shounen.

Main characters

Characters AniList lists in a main role, with spoiler-free notes.

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  Shiki Ichinose 一ノ瀬四季

  Main character

  Shiki is an oni whose powers manifest after an attack by the Momotarou results in the death of his adoptive father. Biologically, he is one of the eight children of Kishin and inherits the Fire elemental attribute. His Blood Eclipse Release manifests as various guns, a reflection of his past interest in them.

  Japanese voice: Kazuki Ura

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  Naito Mudano 無陀野無人

  Main character

  The teacher of Shiki's class. A taciturn, strict man, he is a highly-skilled fighter respected as such by both the oni and the Momotarou. He often travels on roller skates instead of walking. His Blood Eclipse Release manifests as an umbrella.

  Japanese voice: Hiroshi Kamiya

• 

  Jin Kougasaki 皇后崎迅

  Main character

  A student in Shiki's class and his roommate. His father is a Momotarou who previously attempted to kill Jin after he discovered his son was an oni, leaving Jin with scars and stitches all over his body. His father also killed his mother and sister for the same reason.

  Japanese voice: Koutarou Nishiyama

Supporting characters

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  Hayate Todoroki 等々力颯

  Supporting character

  An Oni and the Captain of the Kikoku Unit. He is a Child of the Kishin, with the elemental attribute of wind.

  Japanese voice: Gakuto Kajiwara

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  Homare Byobugaura 屏風ヶ浦帆稀

  Supporting character

  A student in Shiki's class, as well as his love interest. In her past, she was heavily abused by her parents, leaving her constantly apologetic and self-deprecating.

  Japanese voice: Manaka Iwami

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  Ikari Yaoroshi 矢颪碇

  Supporting character

  A classmate of Shiki at Rasetsu Academy. He's short-tempered, but has a pure side when it comes to love. (Source: Official Site)

  Japanese voice: Shougo Sakata

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  Jyuuji Yusurube 遊摺部従児

  Supporting character

  A student in Shiki's class. Though he generally appears collected and intelligent, he is actually a massive pervert who frequently tries to lose his virginity, to no avail. His Blood Eclipse Release manifests as sonar, which activates by seeping into cracks and traveling relatively far distances.

  Japanese voice: Natsuki Hanae

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  Rokuro Kiriyama 手術岾ロクロ

  Supporting character

  A student in Shiki's class. He is extremely averse to all uncomfortable situations, a result of him losing his oni girlfriend to an illness. His Blood Eclipse Release manifests as paper fans and a dancing outfit, having been a dancer in the oni village he grew up in.

  Japanese voice: Kaito Miura

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  Kuina Sazanami 漣水鶏

  Supporting character

  A student in Shiki's class. Though usually appearing brash and tough, she has a motherly fetish that causes her to uncontrollably dote on people she sees as weak and is attracted to. Sazanami soon forces Kiriyama into a relationship under this pretense, much to his dismay.

  Japanese voice: Aimi

• 

  Kyouya Oiranzaka 花魁坂京夜

  Supporting character

  A medical oni initially the main force behind the medical wing of the oni's Kyoto branch, but later becoming Rasetsu Academy's personal doctor. His Blood Eclipse Release grants him the ability to perform miraculous blood transfusions that can even restore lost limbs, although he can only do a certain amount at a time.

  Japanese voice: Ryouhei Kimura

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  Masumi Yodogawa 淀川真澄

  Supporting character

  The captain of the Nerima branch reconnaissance sector. He always has an unsettling smile, regardless of how tense a situation is. His Blood Eclipse Release grants him the power to go invisible for about 10 minutes. This also includes his clothing. It is activated by simply consuming his own blood.

  Japanese voice: Atsushi Tamaru

• 

  Kaoru Namikido 並木度馨

  Supporting character

  An oni in the reconnaissance unit who is disguised as an ordinary librarian. He activates his Blood Eclipse Release by shaking a vial of his blood. The blood echoes back, giving him the locations of nearby people and the layouts of buildings, much like animal echolocation.

  Japanese voice: Haruki Ishiya

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  Tsubakiri Momomiya 桃宮唾切

  Supporting character

  A captain in Kyoto's Momotarou branch. A sadistic man, he lost his capacity for empathy after a berserk oni child murdered his mentor and the latter's family, and came to work primarily in a scientific capacity, dissecting oni corpses.

  Japanese voice: Daisuke Kishio

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  Yomogi Momokusa 桃草蓬

  Supporting character

  Tsubakiri's partner. Her Momotarou ability allows her to create near-impenetrable walls with her bacteria.

  Japanese voice: Mariya Ise

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  Shinya Momoiwa 桃巌深夜

  Supporting character

  A captain in Tokyo's Momotarou branch. His Momotarou ability allows him to peer into the vision of up to 36 people for 24 hours. He is also capable of making a target see his vision, as long as his bacteria is present on them.

  Japanese voice: Chiharu Sawashiro