Excalibur

Excalibur (Japanese: エクスカリバー Hepburn: Ekusukaribā) is a Japanese fantasy manga series published by Shogakukan in their Weekly Shōnen Sunday magazine since February 14, 2013. The series is set in a fictional fantasy world and is heavily based on the legend of King Arthur. An English translation of the manga was published by Viz Media since May 9, 2015.

An anime based on the manga produced by Ufotable was announced and eventually premiered on July 18, 2016. A second season premiered on September 20, 2017, followed by a third on August 24, 2018, and a fourth on November 16, 2019. The fifth season originally predicted to air in September of 2020, but it eventually aired on January 5 of 2021, due to the COVID-19 pandemic. A sixth and final season aired on May 9, 2022.

There were also two films made that were based on the series. The first was Excalibur: Demon God Zaziria, released on December 20, 2018, with the second, Excalibur: Malice Awoken, being released on July 16, 2020.

Plot
The series is set in a fictional fantasy world and mostly takes place on the fictional continent of Camelot (キャメロット, Kyamerotto) which is based on the kingdom from Arthurian legend. The continent is ruled by King Arthur who is the wielder of the magic sword Excalibur, which was forged by goddesses. The protagonist of the series is a young merchant named Gawain, who sells food in order to support his aging grandmother and sick brother, though he struggles to do so. However, one day, he learns from a mysterious old man that he may actually be the son of King Arthur and heads out to confront him, hoping to get money to help his family. While Arthur doesn't believe Gawain's claims, he is forced to raise him as his heir regardless due to the fact Arthur's wife cannot bear him children. However, when another young man, known as Mordred, also claims to be Arthur's son, both Gawain and Mordred are forced to climb the ladder of Arthur's knights in order to become members of the Knights of the Round Table and, eventually, prove themselves the worthy heirs of Arthur's throne.