Blazers are a minority of people who can "manipulate their souls to form powerful weapons." These people attend the Hagun Academy, where they work to become "Mage-Knights". The main character, Ikki Kurogane, is considered a failure, as the only F-ranked Blazer. He is challenged to a duel by the A-rank Blazer and princess, Stella Vermillion. The winner of this duel will get the other as their slave.¹
Immodesty
On the topic of the anime's plot, we learn that the thing prompting the duel was that Ikki saw Stella naked.¹ Other "Sexualized Imagery" is seen in the anime.² Women wear short skirts. There are several instances where a woman is seen in her undergarments, as well as showering scenes, and fan service in the intro and credits.³ These things do not please the LORD, and we should not be watching them for any reason.
As Paul tells us, under the inspiration of the Holy Spirit, women should dress in "modest apparel" (1 Timothy 2:9). When a woman is not correctly dressed, she is in violation of the Scriptures. What we see takes its toll. In Lamentations 3:51, Jeremiah states that his eye affects his heart. Our eyes are an open gateway straight into the heart, and we must be careful what we let in.
Magical Violence
As this is a fantasy-type setting, there is violence⁽²⁾⁽³⁾, but also violence using magical powers. I mentioned that the Blazers have "powerful weapons" they can use.¹ These weapons are magical.⁴
"[1] This know also, that in the last days perilous times shall come. [2] For men shall be lovers of their own selves, covetous, boasters, proud, blasphemers, disobedient to parents, unthankful, unholy, [3] Without natural affection, trucebreakers, false accusers, incontinent, fierce, despisers of those that are good," (2 Timothy 3:1-3, emphasis mine)
The word fierce, according to Noah Webster's 1828 dictionary, means "Vehement; violent; furious; rushing; impetuous".⁵ Violence is condemned by the Bible, even more so magical violence! Witchcraft, magic, is clearly forbidden by God. God ripped the kingdom of Israel out of Saul's hands for his rebellion. Rebellion, being such a vile sin, is compared to witchcraft by Samuel.
"For rebellion is as the sin of witchcraft, and stubbornness is as iniquity and idolatry. Because thou hast rejected the word of the LORD, he hath also rejected thee from being king." (1 Samuel 15:23)
Conclusion
As you can see, there is no biblical excuse for a Christian to watch this show. It contains so many ungodly elements, and that's simply not what God would have us consume. Philippians 4:8 tells us that we are to think on things that are of good report, pure, and lovely. Do you think that watching this anime makes you think of pure things, or of impure things?
Sources:
1. "Rakudai Kishi no Cavalry." MyAnimeList, myanimelist.net/anime/30296/Rakudai_Kishi_no_Cavalry. Accessed 7/14/2025.
2. Chivalry of a Failed Knight. Crunchyroll, crunchyroll.com/series/GR1XD2PER/chivalry-of-a-failed-knight. Accessed 7/14/2025.
3. "Chivalry of a Failed Knight: Parents guide." IMDb, imdb.com/title/tt5100366/parentalguide. Accessed 7/14/2025.
4. "Ikki Kurogane." Rakudai Kishi no Eiyuutan Wiki, rakudai-kishi.fandom.com/wiki/Ikki_Kurogane. Accessed 7/14/2025.
5. "Variance." American Dictionary of the English Language, webstersdictionary1828.com/Dictionary/Variance. Accessed 7/14/2025.