零

The heroine. As a result of the ongoing experiment, her organs are being replaced with those of a pig. She is very valuable as a research subject, but since the technology has not been fully developed and the war situation is getting out of control, she has become the consolation prize of the military brass. She is a girl who is polite in her language and has even mastered the etiquette of a nobleman, but her intelligence has regressed, perhaps due to the effects of her surgery. Stimulated by the repeated experiments and the intensified play, she loses the last of her mind and her life is reaching its end. [From official site]