The Ancient Magus' Bride - Season 2 - Eps 11: A small leak will sink a great ship. I
Apparently, a forbidden magic book called "The Testament of Carnamagos" is being used to rob Lucy and Simeon of their magical powers. But who exactly is behind it is still unclear. Elias takes care of the matter because he fears that otherwise Chise will put herself in danger for her friend and because he himself wants to protect a friend.
About The Ancient Magus' Bride

Title: The Ancient Magus' Bride
First Air Date: 2017-10-08
Last Air Date: 2023-12-21
Status: Ended
Rating: 8.421/10 (from 392 votes)
Language: JA
Seasons: 3
Total Episodes: 48
Network: Tokyo MX
Genres: Animation, Sci-Fi & Fantasy
Production Companies: WIT STUDIO, FlyingDog, Production I.G, Shochiku, MAG Garden, Studio Kafka, bilibili, Twin Engine
Synopsis
Hatori Chise has lived a life full of neglect and abuse, devoid of anything resembling love. Far from the warmth of family, she has had her share of troubles and pitfalls. Just when all hope seems lost, a fateful encounter awaits her. When a man with the head of a beast, wielding strange powers, obtains her through a slave auction, Chise's life will never be the same again. The man is a "magus,"a sorcerer of great power, who decides to free Chise from the bonds of captivity. The magus then makes a bold statement: Chise will become his apprentice--and his bride!
Cast

Atsumi Tanezaki
Chise Hatori (voice)

Ryota Takeuchi
Elias Ainsworth (voice)

Koki Uchiyama
Ruth (voice)

Aya Endo
Silky (voice)

Minami Tsuda
Lucy Webster (voice)

Maki Kawase
Philomela Sergeant (voice)

Seiichiro Yamashita
Rían Scrimgeour (voice)

Daiki Kobayashi
Zoe Ivy (voice)

Reina Ueda
Veronica Rickenbacker (voice)

Koutaro Nishiyama
Isaac Farrar (voice)