Yushima Seido Temple

If you're a serious student in Tokyo you're probably familiar with Yushima Seido Temple. It's the best place in town to pray for good grades. At exam time, students queue up to write a Ema and to pray at the temple.

Yushima Seido is one of relatively few Confucian Temples in Japan. The vast majority of Japanese temples are Buddhist. 

The temple played an early role in Japan's education system. Its institutions of learning went on to become some of Japan's top universities.

Check out this video about Japan Shinto Shrine Jinja Ema Prayer Plaque

reference: http://www.japan-talk.com/jt/new/yushima-seido-temple