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Sanetoshi Watase
Character Basics
Japanese 渡瀬 眞悧
Romanized Watase Sanetoshi
Seiyū Yutaka Koizumi
Debut Episode 09
Biological Stats
Age Unknown
Death March 20, 1995
Gender Male
Race Human/"Ghost"
Biographical Information
Occupation Librarian/Doctor
Affiliation Penguin Force/Kiga
Chara sanetoshi.jpg

Sanetoshi Watase (渡瀬 眞悧 Watase Sanetoshi?) is a terrorist from Penguin Force/Kiga Group and the main antagonist in the series. He is first introduced in episode 09 as the mysterious librarian who works at the Central Library's "Hole in the Sky branch". In episode 13 he appears as a doctor after Himari dies and offers Kanba medication to prolong her life, but for a price. He defines himself as a "ghost" or a "curse" as his soul was split in two by Momoka, making him "dead".


Little is known about Sanetoshi. He looks like a rather secretive and alluring man. He's matter of fact and has no qualms with bringing up painful topics of conversation. It could be inferred that he is a rather sadistic and manipulative character since the reason that he charges Kanba for the medicine for Himari is because he knows that Kanba can only obtain that amount of money by working for the Kiga Group, which is what Sanetoshi wants - he later convinces Kanba to side with him in destroying Momoka's diary and continuing the Kiga Group's terrorist operation. Because Sanetoshi is not an Earthly being. Sanetoshi later tells Kanba and Shoma that Himari is going to die anyway, remarking that "medicine loses its potency if it is used too often", suggesting he was only keeping Himari alive long enough to get Kanba to carry out his wishes for the Kiga Group.


Background History[]

Little is known about Sanetoshi's past, but he was Dr. Washizuka's coworker and colleague and acted as a terrorist from the Penguin Group, along with Kenzan Takakura and Chiemi Takakura. He was the one in charge of orchestrating the subway attack; but, when he finished placing all the bombs (the black panda mechas), Momoka Oginome came to him and told him that with her powers she will stop him and save everybody. While she was reciting the spell, Sanetoshi cursed her by putting a sticker on her forehead. Her soul was split into the two Penguin Hats and only half of the people in the subway were saved. But Momoka's spell split Sanetoshi's soul into the Black Rabbits as well, "killing" him. It is later revealed in Himari Takakura's dream (Episode 09) that Sanetoshi then, somehow, became the librarian of the Central Library's "Hole in the Sky" Branch. He sent Penguin 3 to Himari so she will come all the way to him. There in the library he revealed parts of Himari's past written in books, gave her the penguin hat and sent the package of penguins to the Takakura home.[1]

Part in the Story[]

Our Crime and Punishment[]

Dr. Washizuka being on a trip in Germany, Sanetoshi takes his place and presents himself as a doctor who had just been transferred to To'oh Hospital. After Himari Takakura's death, he comes into her room and tells Kanba Takakura not to lose hope. After taking an apple in one of the wallets the Black Rabbits was holding and changing it into a flask filled with a shiny, red liquid, he asks Kanba if he could start the Survival Strategy. Filling a syringe with the medicine, he states that he was the one who had the power to save Himari. But before injecting her the liquid, he says that it was very expensive. Obtaining from Kanba the promise that he will be recompensed, he gives Himari the medicine, bringing her back to life.

We then see him in the "Hole in the Sky" Branch following a running Momoka Oginome and asking her what she thinks about the concept of "fate". Having no answer, he starts speaking about their relationship: how, sixteen years ago, he met a little girl that was the same kind of person as him, that could see the same landscape that he saw, how he felt happy about it. But at the same time, he was sad, because he understood that this world wasn't big enough for the two, and Momoka rejected him. Then, answering an imaginary question, he reveals that if he saved Himari's life, it was so he could discover if fate truly existed. He then turns to the penguin hat and sends it back to Himari, telling Momoka that she will eventually see the world the same way as he does when she witnesses the journey of the Takakura children.


Himari Takakura[]

There's some kind of close bond between Sanetoshi and Himari as he wants her to become the "Bride of Destiny".

Momoka Oginome[]

It is later revealed that the entity in the hat, Momoka, is supposed to be his bride. Sanetoshi states that Momoka was the only other person like him with the same eyes that were meant to be together, but she tried to destroy him in order to stop his terrorist attacks instead.

Shirase & Souya[]

When Sanetoshi presents himself as the new doctor from To'oh Hospital, he is accompanied by two young underlings, Shirase and Souya, who will always follow him onwards.

Kanba Takakura[]

Kanba's strong love for Himari Takakura makes him an easy mark for Sanetoshi to manipulate. Sanetoshi first begins manipulating Kanba by offering him medicine which can save Himari, but the medication steadily goes up in price, forcing Kanba to do more work for KIGA in order to get more money. Eventually, Sanetoshi tells Kanba that Himari has built up a tolerance to the medication and that it will no longer work. However, Sanetoshi told him that he could save Himari with magic, so long as Kanba did what Sanetoshi told him which included blowing up a train. Kanba's relationship with Sanetoshi may be similar to the one Sanetoshi had with Kenzan in the past.


  • The name Sanetoshi means "truth, reality, Buddhist sect" (眞) (sane) and "clever" (悧) (toshi).
  • Sanetoshi's surname Watase means "transit, ford, ferry, cross, import, deliver, diameter, migrate" (渡) (wata) and "swift current, rapids" (瀬) (se).


  1. Episode 9, seems to recount Himari's day at the aquarium in Episode 1 from her point of view.

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