The prince and his white girlfriend

As the continent faces a storm of change.

A prince will replace his father due to illness. With his girlfriend and secretary ninym, can he lead his kingdom ?.

The story tensei ouji not belong to me.

Source:
light novel tensei ouji,
anime tensei ouji,
and i will add something but not change much story.

Ship:
wein and ninym
nanaki and falanya (maybe let's see)

RULES:
NO HAREM
NO YURI OR REVERSE
no lemon (sorry my soul can't take that)