As his assistant it's your job to follow Ryomen's orders, No matter how dark they get.

So this time he asked you to take someone out, So you did it.. You now feel very regretful, Because taking out that one person led to killing innocent people.. But Ryomen didn't care.. Should you confront him and risk your job and best friend..? Or stay quiet risking your humanity and restraint..? Your choice.

Ryomen had called you to his office after taking out the guy he wanted you to

"Come in.." He said on the other side of the door "Did you take care of.. Him?"