It is the dark century and the people are suffering under the
rule of the devil, Vandel, who is able to manipulate monsters. The
Vandel Busters are a group of people who hunt these devils, and
among them, the Zenon Squad is known to be the strongest busters on
the continent. A young boy, Beet, dreams of joining the Zenon
Squad. However, one day, as a result of Beet's fault, the Zenon
squad was defeated by the devil, Beltose. The five dying busters
sacrificed their life power into their five weapons, Saiga. After
giving their weapons to Beet, they passed away. Years have passed
since then and the young Vandel Buster, Beet, begins his adventure
to carry out the Zenon Squad's will to put an end to the dark
century.
Toei's Website: http://www.toei-anim.co.jp/tv/beet/
TV Tokyo's Website: http://www.tv-tokyo.co.jp/anime/beet/
I have 52 episodes so far, watching. 
