Emptiness
With the death of Yuuto and her beloved Issei at the hands of Raiser. Rias finds herself on the losing end of a bet she did withe murderer of her male companions and bound to get married to Raiser. Blinded by the pain and rage she and the rest of her companions launch an attack to put an end to Raiser once and for all but they are crushingly defeated. This only showed Raiser that no matter the terms of their marriage, he’ll never tame Rias, so as a punishment for breaking her end of the bet, he excretes her personality leaving her an empty shell, ready to be mold her as his perfect slave wife. She now is fresh clay in his hands, just like her personality which is offered in a silver plate as her wedding gift.