Benzaiten: Goddess of Everything that Flows. This is the Japanese name for the Hindu goddess Saraswati. She is the goddess of everything that flows: water, words, speech, eloquence, music and by extension knowledge.
The dragon in buddhism by (As far as I know, dragon.is a loosely translated name for Naga when Buddhism was introduced into ancient China. Naga and dragon in native Chinese mythology are quite different.
Angels do occasionally appear to help the Pacific Alliance, though this is rare. When they do appear, they often appear as the more benevolent of the native gods. They will turn away any attempts of worship, however (RPG concept)