What is his personality like?

"Hey, aren't you the secretary of that bodyguard? Why are you doing this cleaning work? I will ask some cleaning ladies to do that," Daniel walked to Lucas.

Lucas rolled his eyes and continued throwing the buckets of water on the blood splashes.

Everyone looked at him weirdly when he picked the heart that was still beating as if it was some kind of delicate thing that shouldn't be destroyed and placed it in a box.

"It's my job to clean after my boss, despite the fact that I don't get paid enough for it," Lucas sighed at the end.

Though his boss used to be more lethal than he is now before Princess entered their lives, his anger has been taking over quite frequently these days, and it was making things harder for him. 

This cleaning stuff that he used to do once or twice a month when his prince used to eat has now turned to 4 times this month already.

"Why are you preserving that heart?" Daniel asked, suspicious of this secretary's intentions.