Chivalry of a Failed Knight Anime:
The first episode of Chivalry of a Failed Knight anime aired all the way back in 2015. The views of people regarding this anime were mixed at its initial release. However, the anime became very popular and in my personal opinion, this is one of the better harem anime out there. The anime has very good animation. The soundtracks really fit the theme and the voice actors have also done a great job. This anime might seem kind of generic at times but it is very entertaining and worth a watch.
Chivalry of a Failed Knight Manga:
Chivalry of a Failed Knight Manga was actually adapted from the light novel. The manga started its production in 2014 and is just as enjoyable as the anime. The Manga goes further than the anime and covers 4 volumes of the light novel. The art of the manga is quite decent; all the characters are recognizable. At times, it seems like the art is a little rough but overall, the art is quite good.
If you love to read manga and want to catch up on the events after the ending of the anime then, I suggest that you go read the manga right now.