There seems to be no god in charge of wind, thunder, fire, water and earth in Japanese mythology. Most of the gods in Japanese mythology are Yin gods, which are NB ghosts according to the terminology of China mythology. The most awesome gods are Zhao Tian and Sun God. Susan Nuo (the god of chaos and violence, who killed the snake of Hachi) and Harle (see you on a moonlit night) are the three Japanese gods.
In addition, when writing about Huo Ying, you'd better write something magical, such as a grass-shaved sword (Tian Jian), eight mirrors, and an eight-foot jade hook (this seems to be related to the Naypyidaw clan).