Amaterasu

Amaterasu is a 2nd Class God, in charge of managing Hell. Due to a mishap, she caused JAPAN and Hell to be connected by numerous Hell Holes, leading to Onis rampaging in JAPAN. Feeling responsible, Amaterasu performed three great services as favors to the people of JAPAN: Amaterasu is far more compasionate and amiable than the rest of the Gods. Most saw her gifts to the JAPANese as unnecessary and even got frowned upon by her boss. To appease Ludo-Rathowm, she also invented the Emperor Race as a venue of entertainment.
 * 1) Building the Tenma Bridge, connecting JAPAN to the main continent.
 * 2) Creating the three Emperor artifacts and the position of the Emperor.
 * 3) Teaching the people of JAPAN how to make miso.