In a world ravaged by relentless conflict, T-Dolls-android soldiers designed for warfare-are indispensable. However, among them exists a unique T-Doll, Sarah, who harbors a profound aversion to war, embodying pacifist ideals. Due to this deep-seated hatred for violence, Sarah is deemed defective and discarded, replaced by a more compliant version of herself. Cast aside and left to fate, Sarah is discovered by a brilliant scientist, Y/N. This scientist perceives Sarah not as a defective machine but as a complex entity with a sophisticated system, advanced OS, and remarkably human-like traits. Fascinated by Sarah's intricate design and empathetic nature, the scientist decides to provide her with two new bodies: one, a Human Doll, designed to seamlessly blend in with human society, and the other, a powerful GAT-X105 Strike T-Doll, meant for combat. Despite this, Sarah rejects the combat body, yearning instead for a normal life among humans. Embracing her new Human Doll body, she integrates into human society, seeking peace and normalcy. will her peace will last or will her peaceful days over and force her to fight?