Fans are discussing how closer to the manhwa the anime is compared with the Japanese translation of the webcomic.

The Koka Ninja are often depicted in anime and movies as the arch rivals ... from their stunning success at the battle of "Magari-no-Jin" to the disaster that culminated in the "Koka Yure." ...

Who are the “Japanese” then? The Asahi Shimbun asked Cameroon-born manga artist Rene Hoshino, a self-proclaimed “African Kansai-jin” who has explored such a question in his works ...