Buddhism is both a religion and a philosophy. It consists of beliefs, traditions, and spiritual practices mainly based on the teachings of Buddha over 1500 years ago. It has the goal of overcoming the cycle of death and rebirth, and the suffering through the path of Buddhahood or attaining Nirvana. In China it became influenced by Daoism and Chinese Folk Religion, which was the version that spread to Japan, Korea, and Vietnam. 
Buddhism embraced magic and therefore the reintegration of magic into Buddhist-influenced societies was relatively painless compared to in the West. Mystical Buddhists follow any of the magical paths and have an open mind when it comes to metahumans. The majority see them as simply another form of a reincarnated human. A minority among the Buddhists see metahumans as a lesser form.