TV series
When a sickly young girl suddenly becomes obsessed with inventing new things, her family and friends are all puzzled. "What has gotten into Myne?" they wondered, never dreaming that the answer is not a "What" but a "Who": Urano Motosu, a book-loving apprentice librarian who died in an earthquake in Tokyo who somehow found herself in Myne's body! And since Myne's world is still in a medieval stage, where books can only be owned by the elite, the new Myne intends to do everything she can to bring her beloved books to the masses in the time she has left.
Streaming, rental and purchase options
Checked Sep 1, 2026
Ascendance of a Bookworm is available to stream on Crunchyroll Premium and Crunchyroll Premium (Via Amazon Prime) in United States. You can also buy it from Amazon and Apple TV. Use the direct links below to open the provider.
When a sickly young girl suddenly becomes obsessed with inventing new things, her family and friends are all puzzled. "What has gotten into Myne?" they wondered, never dreaming that the answer is not a "What" but a "Who": Urano Motosu, a book-loving apprentice librarian who died in an earthquake in Tokyo who somehow found herself in Myne's body! And since Myne's world is still in a medieval stage, where books can only be owned by the elite, the new Myne intends to do everything she can to bring her beloved books to the masses in the time she has left.
Choose an episode, then use the watch options above for the show.
Episode 1
Myne begins her new life as Rosemyne. Her first challenge is to complete the baptism and adoption ceremonies!
Directed by Yoshiaki IwasakiWritten by Mariko KunisawaGuest stars Toshiyuki Morikawa, Yuuichirou Umehara, Kazuhiko Inoue, Yusuke Kobayashi, Nagisa Maruyama, Yusuke Shirai, Seiichiro Yamashita, Yuma Uchida
Episode 2
After the baptism ceremony and adoption, Rosemyne returns to the cathedral to become the high bishop.
Directed by Kyosuke TakadaWritten by Mariko KunisawaGuest stars Mutsumi Tamura, Takehito Koyasu, Megumi Nakajima, Tsuyoshi Koyama, Fumiko Orikasa, Tomoaki Maeno, Toshiyuki Morikawa, Yuuichirou Umehara
Episode 3
Rosemyne officially moves into the castle and Sylvester finally eats at the Italian restaurant.
Directed by Sho SugawaraWritten by Mariko KunisawaGuest stars Takehito Koyasu, Megumi Nakajima, Tsuyoshi Koyama, Fumiko Orikasa, Aya Uchida, Hiroshi Naka, Toshiyuki Morikawa, Kazuhiko Inoue
Episode 4
Rosemyne tries to collect donations from the nobility, but finds it harder than she thought...
Directed by Kohei KawaiWritten by Ryo YamazakiGuest stars Mutsumi Tamura, Takehito Koyasu, Yuuichirou Umehara, Sho Karino, Yuko Sanpei, Seiichiro Yamashita, Kiyoko Miyazawa, Yuka Terasaki
Episode 5
Rosemyne puts all her efforts into preparing for the harspiel concert.
Directed by Yuki WatanabeWritten by Mariko Kunisawa, Chisato UedaGuest stars Mutsumi Tamura, Megumi Nakajima, Tsuyoshi Koyama, Fumiko Orikasa, Yuuichirou Umehara, Sho Karino, Chiyo Tomaru, Kiyono Yasuno
Episode 6
Everything is falling into place for the concert. All that's left is to guard against one person...
Directed by Kyoko Yamazaki, Shigeru ChibaWritten by Ryo YamazakiGuest stars Mutsumi Tamura, Toshiyuki Morikawa, Kiyono Yasuno, Yuko Sanpei, Kazuhiko Inoue, Yusuke Kobayashi, Yusuke Shirai, Katsumi Fukuhara
Episode 7
The monastery in Hasse is now ready. Rosemyne goes for the final inspection and to accept new children.
Directed by Jiro ArimotoWritten by Mariko KunisawaGuest stars Mutsumi Tamura, Takehito Koyasu, Megumi Nakajima, Tsuyoshi Koyama, Fumiko Orikasa, Tomoaki Maeno, Yuuichirou Umehara, Sho Karino
Episode 8
Ferdinand gives Rosemyne the task to entrap and isolate the mayor of Hasse.
Directed by Shoichi HaritaWritten by Mariko KunisawaGuest stars Mutsumi Tamura, Takehito Koyasu, Tomoaki Maeno, Yuuichirou Umehara, Yusuke Shirai, Kiyoko Miyazawa, Yuka Terasaki, Motoi Koyanagi
Episode 9
Rosemyne finally gets fed up with Wilfried's complaints and offers to switch spots with him for a day.
Directed by Miyabi InamoriWritten by Mariko Kunisawa, Chisato UedaGuest stars Mutsumi Tamura, Yuuichirou Umehara, Sho Karino, Kiyono Yasuno, Yuko Sanpei, Kazuhiko Inoue, Kanako Miyamoto, Yusuke Shirai
Episode 10
Directed by Sho SugawaraWritten by Ryo YamazakiGuest stars Tsuyoshi Koyama, Toshiyuki Morikawa, Yuuichirou Umehara, Sho Karino, Toshihiko Seki, Yusuke Kobayashi, Asami Seto, Motoi Koyanagi
Episode 11
To improve the printing press, Ingo is even willing to exchange ideas between different trades.
Directed by Shinya KawabeWritten by Mariko KunisawaGuest stars Mutsumi Tamura, Takehito Koyasu, Sho Karino, Yuko Sanpei, Kazuhiko Inoue, Toshihiko Seki, Yusuke Kobayashi, Kouji Takahashi
Episode 12
The winter social season is here and Rosemyne must successfully finish her debut.
Directed by Yuka HashimotoWritten by Mariko KunisawaGuest stars Mutsumi Tamura, Megumi Nakajima, Fumiko Orikasa, Toshiyuki Morikawa, Yuuichirou Umehara, Minori Suzuki, Kazuhiko Inoue, Toshihiko Seki
Episode 13
Rosemyne attempts to gather materials for her jureve once again!
Directed by Takafumi HinoWritten by Ryo YamazakiGuest stars Mutsumi Tamura, Takehito Koyasu, Toshiyuki Morikawa, Yuuichirou Umehara, Yuko Sanpei, Kazuhiko Inoue, Seiichiro Yamashita, Kiyoko Miyazawa
Episode 14
Hasse's punishment has finally been decided and Rosemyne must go to witness the results.
Directed by Zenichiro ItoWritten by Mariko KunisawaGuest stars Mutsumi Tamura, Takehito Koyasu, Megumi Nakajima, Tsuyoshi Koyama, Tomoaki Maeno, Yuuichirou Umehara, Sho Karino, Rika Kinugawa
Episode 15
Rosemyne must go to the Goddess's Bath on the Night of Fruhtrane to collect the spring material for her jureve.
Directed by Natsumi UchinumaWritten by Ryo YamazakiGuest stars Toshiyuki Morikawa, Yuuichirou Umehara, Sho Karino, Minori Suzuki, Toshihiko Seki, Yusuke Kobayashi, Nagisa Maruyama, Asami Seto
Episode 16
Brigitte tries on the dress that Rosemyne designed while the printing press is finally ready for a test print.
Directed by Ryutaro AwabeWritten by Mariko KunisawaGuest stars Mutsumi Tamura, Takehito Koyasu, Megumi Nakajima, Tsuyoshi Koyama, Fumiko Orikasa, Satoshi Hino, Tomoaki Maeno, Toshiyuki Morikawa
Episode 17
With the archduke and his wife away, Rozemyne must stay at the castle with Wilfried.
Directed by Mitsuo HashimotoWritten by Mariko KunisawaGuest stars Mutsumi Tamura, Takehito Koyasu, Megumi Nakajima, Tsuyoshi Koyama, Fumiko Orikasa, Satoshi Hino, Toshiyuki Morikawa, Yuuichirou Umehara
Episode 18
The Star-Binding Ceremony begins and Rosemyne hopes Brigitte's new dress will enchant the nobility.
Directed by Shoichi HaritaWritten by Ryo YamazakiGuest stars Takehito Koyasu, Toshiyuki Morikawa, Yuuichirou Umehara, Kazuhiko Inoue, Yusuke Kobayashi, Kiyoko Miyazawa, Yuka Terasaki, Minami Takayama
Episode 19
Rosemyne and her Gutenberg go to Illgner in hopes of finding new materials for papermaking.
Directed by Sho SugawaraWritten by Ryo YamazakiGuest stars Mutsumi Tamura, Takehito Koyasu, Yuuichirou Umehara, Sho Karino, Yuko Sanpei, Toshihiko Seki, Yusuke Kobayashi, Kouji Takahashi
Episode 20
Georgine comes to visit and everyone in Ehrenfest question her true motives.
Directed by Tomomi TakeuchiWritten by Mariko KunisawaGuest stars Tsuyoshi Koyama, Chiyo Tomaru, Kazuhiko Inoue, Kiyoko Miyazawa, Yuka Terasaki, Minami Takayama, Kikuko Inoue, Teruyuki Tanzawa
Episode 21
Rosemyne tries to gather the ruelle fruit once again. This time Ferdinand and Karstedt join to ensure success.
Directed by Chen XiaocanWritten by Mariko Kunisawa
Episode information updated Sep 18, 2026
Yuka IguchiMain (voice)
Mutsumi TamuraLutz (voice)
Takehito KoyasuBenno (voice)
Megumi NakajimaTuuli (voice)
Tsuyoshi KoyamaGunther (voice)
Fumiko OrikasaEffa (voice)
Satoshi HinoOtto (voice)
Tomoaki MaenoMark (voice)
AjiadoJapan
WIT STUDIOJapan
GENCOJapan
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