The assassin, the princess, and the king (Ishimondo)

In a land where magic was banned to everyone but the royal family, and their heir to the throne was cursed at the young age of 2 stripping him of his powers, people weren't exactly happy.

At the age of 21, cursed Kiyotaka became king of an entire land; despite his curse. This has made most of its population upset by this he'd had multiple assassins sent after him, not even a year of being a royal.

Here's the thing that is unknown of the curse by anyone but his sister, Kiyo. The curse with slowly wear down someone sanity, and may send them into episodes where they will not have a proper train of thought.

So when 22 year old assassin year old Mondo Oowada is sent to kill him, he breaks in right in the middle of an episode he is surprised by the kings act, and scared by Kiyo. When offered tea, he agrees. What couldn't have been thought was...could a murder attempt turn into romance?

Soon after Mondo's break in, his older brother breaks in afterwards, not for the king, but to learn of the princess, who was always in her brothers shadow.