The old man looked at Kai for a moment before he spoke, "When a light illuminates the human heart and leads them away from the darkness, it is then will you realize that their heart is no longer the old heart; the heart reflects the people, as long as there is no problem with the core of the heart, even if it's get lost again and return to the darkness, as long as it feels a glim of light again it will surely find it's way back to the light".
"Old man, I'm not willing to be a saint who lit up the path of others; my way is simple, don't cross my way; even if the most purest soul becomes an obstacle in my path, I will still cut the soul in peace with my blade, light or dark, right or wrong all those are not my business, my way is to reach the peak with those I consider family" Kai spoked calmly before he took the key the old man already placed on the table and walked away to the room given to him.