Shounen Hakaryuudo

Ciel is a member of the 'fairy-wing conservation group' - an organization that protects fairies from hunters who try to hunt them for their wings, which are said to bring the possessor eternal happiness. Ren is a precocious but immature fairy-wing hunter with a tormented past and a grudge to satiate. The encounter between these two will open the doors to a tale interwoven with fate.