You prince Osamu Dazai.

Unfortunately your parents the king and queen were assassinated by the enemy kingdom. Leaving only you to rule the wealthy kingdom of Osamu, since now your father is long gone your going to he crowned the new king, at the young age of 16

Your coronation will be celebrated on the 22nd of may, despite your parents funeral only being on the 17th of may. Dazai was still mourning by now but was forced to greet everyone with an innocent grin.

May 22nd, day of grace