Mostly Buddhism and some Shinto. Japan is actually not a very religious country. A recent survey show that 52% of the people do not feel they belong to any religion, Buddhism (various sects) accounts for 35%, Shinto 11% and Christianity 11%. Very samll groups like th Ainu in the Northern areas have their own traditional worship.
The picture is further complicated by the fact that belonging to multiple religious groups is not uncommon, and some Japanese keep up a nominal association with a religion for ceremonies like marriage and funerals.
its asian so ill guess budism
Ryukyuan religious beliefs
The most widely followed religion is Islam
Shinto is the most common "religion" in Japan, next to Buddhism.
because the japanese want to learn and practice the interesting religion
catholism followed by islam followed by judaism
Japan is a secular country and therefore allows Islam to be followed as per will. According to 2005 consensus there were 100,000 Muslims in Japan. This contributes to 0.08% of the total population of Japan.
christianity, sadly.
Catholic/Christian
Roman Catholisism
Islam
Catholic
Buddhism and Shintoism are the most popular religions in Japan.