The Rising of the Shield Hero - Season 1 - Eps 17: A Promise Made
Fitoria tells Naofumi that she'll kill all Four Cardinal Heroes if they don't get back on the same page. She even takes Melty hostage, but Naofumi continues to refuse. Understanding where he's coming from, Fitoria instead proposes a one-on-one duel with Filo.
About The Rising of the Shield Hero

Title: The Rising of the Shield Hero
First Air Date: 2019-01-09
Last Air Date: 2023-12-22
Status: Returning Series
Rating: 8.533/10 (from 1383 votes)
Language: JA
Seasons: 5
Total Episodes: 51
Network: AT-X
Genres: Animation, Action & Adventure, Sci-Fi & Fantasy, Drama
Production Companies: Kinema Citrus, Good Smile Company, Nippon Columbia, Glovision, NTT Plala, Frontier Works, Sammy, DR Movie, KADOKAWA Media House, Crunchyroll, NTT Docomo
Synopsis
Iwatani Naofumi, a run-of-the-mill otaku, finds a book in the library that summons him to another world. He is tasked with joining the sword, spear, and bow as one of the Four Cardinal Heroes and fighting the Waves of Catastrophe as the Shield Hero. Excited by the prospect of a grand adventure, Naofumi sets off with his party. However, merely a few days later, he is betrayed and loses all his money, dignity, and respect. Unable to trust anyone anymore, he employs a slave named Raphtalia and takes on the Waves and the world. But will he really find a way to overturn this desperate situation?
Cast

Kaito Ishikawa
Naofumi Iwatani (voice)

Asami Seto
Raphtalia (voice)

Rina Hidaka
Filo (voice)