After the tragedy that killed his mother, he changed, becoming cold, calculated, cunning, and discreet, Willing to do whatever means necessary to see his goals of finding his father through. His psychological trAfter the tragedy that killed his mother, he changed, becoming cold, calculated, cunning, and discreet, Willing to do whatever means necessary to see his goals of finding his father through. His psychological trauma from Ai's murder tends to resurface anytime he seems to forget his goals.