Consciousness, Manas, and Regret

When karma manifests, it is manas that is acting and controlling everything, without giving consciousness any chance to justify itself. The event occurs, yet after it passes, who is it that regrets?

After the event, consciousness regrets first. Because consciousness can observe and analyze its own actions of body, speech, and mind, knowing what is right and wrong, it then regrets. The content of consciousness's regret is simultaneously perceived by manas. If manas acknowledges consciousness's regret and regrets its own previous actions of body, speech, and mind, then manas will be able to correct its behavior in the future. If manas does not acknowledge consciousness's regret, then manas itself will not regret and will continue as before, not changing its actions of body, speech, and mind. In this case, consciousness's regret fails to serve its intended purpose, and one will still follow the habits of manas.