Courage

Lyn shook her head. "No, you are not to blame Kazuya."

"But I-"

"It's normal, you finally found a place you belonged. You finally found comrades you wanted to share your pain, sadness, happiness and other emotions with. Naturally you didn't want to break it. If you spoke up about the traitors, it would have caused a rift with the remaining members. You wouldn't have been able to function as a group."