Katherine and Raiden

A young man could be seen standing in front of the room, and after some time of thinking, he finally took a deep breath and knocked on the door.

*knock *knock*

His heart was beating faster while knocking, and sometimes later, the room door was opened, and a beautiful woman opened the door. She has a milky white face and a pair of deep green eyes, which is starring that young man.

"Sister Katherine, it's been a while, I am here to talk to you. Do you have some time? It's a very urgent matter, and I need your help," he said with a bitter smile on his face.

"Get lost, if you don't want to get beaten, I am in the middle of training," Katherine responded, and the next moment she slammed the door on his mouth.

His facial expressions became dark as he saw this, he looked here and there, and fortunate enough, no one saw him getting insulted by his sister, he gathered some courage one more time.

*knock *knock*